Yes, these materials are still tested on the digital SAT. If anything new is added, will create a new video. Guys, so I don't know what I was going through that day but the correct answer to the first question is 8. Ignore the little 4's added in and just follow the audio (what I say in the video) . 🏆 3-Step To 700+ On SAT Math Without Naturally Being Good At Math [Free Masterclass] www.admissionhackers.com/free-training-summer . 📚 SAT Math Accelerator [6-Week Prep Course]: www.admissionhackers.com/sma
i was solving and waited for your answer, then i saw 4 and im like shit! i started breaking my head over it coz the problem was too simple, then i saw this, lol XD
in case anyone's confused about the problem at 0:44: you have to use the properties of quadrilaterals as well as the inscribed angle theorem to set up an equation and solve for x. all the inner angles of a quadrilateral add to 360 degrees, and the inscribed angle theorem says that an inscribed angle (angle with the vertex on the circumference of the circle) is equal to half of the central angle subtending the same arc. this tells us that a=x/2, and knowing that P=360-x we can set up an equation to solve for x as follows: 20+20+x/2+(360-x)=360, which simplifies to x=80. hope this helps!
what worked for me is that I created a new line segment by connecting point P to point A. Line A creates two isosceles triangles on either side of point P. Becuase both legs of the icoscesles triangles have the same angle, I was able to to find that the triangles vertex is equal to 140, as s 2(20)+x=180. then I used the vertex's angle to find the value of x by doing: 2(140)+x=360 which simplifies to x=80.
example 1 (3:14) becomes even easier if you use s=θr for arc length where θ is in radians. 180° is equal to π radians, so you end up with 8π=πr for your equation. if you know this, then getting the answer becomes much easier because all you have to do is divide out π. 8π/π = 8, the answer is C. if you're familiar with radians i'd definitely recommend you use them for problems like this example 2 (7:25) also becomes easier if you know that 120° is equal to 2π/3 radians. if you keep the radius as 96/2π and plug it into s=θr, you get s=(2π/3)(96/2π). 2π cancels out and 96/3 is 32.
@@bestselfimprovement3 radians are a different unit for measuring angles and if you know what they are and how to use them the first two examples in this video become easier and faster to solve
@@tylermorris8856 this works perfectly, and if you prefer degrees make sure your mode of your calculator suits, as well as keeping in either degree of radians, I can see you took pre calc definitley
The benefit of using radians is nullified by the fact that (I'm pretty sure) the SAT never uses radians on their questions. Radians get introduced in pre-calc, which is outside of the scope of the SAT. So if you wanted to use radians, you would have to convert to it from degrees. IDK about you, but that doesn't seem worth it to me.
Yes, but if you work with radians you end up memorizing a bunch of values and their degree equivalents. If it's not worth it for you then don't do it but if you can convert quick it's faster
A little shortcut for 4:43, C represents circumference = 2 pi x r or pi x diameter. The Arc length: Circumference multiplied by the angle over 360. Basically 96 x 120/360 = 32. There's no need to do the extra.
One more tip. The kite type figure is called a cyclic quadrilateral and it has a property that opposite angles are supplementary ie if that was 60 the other ones 120 straight away
math has been my best subject in everything for as long as i can remember but these SAT math questions screw me over so bad to the point my R&W scores are unbelievably higher. so thank you for making these life changing videos because my whole life depends on this score, literally.
I genuinely wanna thank you, you put efforts into your videos and honestly I don’t know what would i do if you didn’t make these little videos. They have helped me immensely. I don’t stand a chance when it comes to maths but I guess that’ll have to change now lol ❤ thanks man!
For the first question, just use the formula for calculating length of an arc but in radians not in degree => Let angle = § r§ = 8x pie In radians the angle § = pie so those two cancel out Hence, radius r = 8
TIP- the circle characteristic question- there circumference is already given. So you don't need to find the radius. Just plug in 96 where 2pir is present. As circumfrence=2pir.
thank you so much i always had difficulties with these type of problems, now i finally understand them. i also have the sat this saturday the 13th im extremely nervous.
@@gauravnath8926 I’m sitting on August 28. The only reason I’m taking it this early tho is because I’m required to for a program. Only had around a month to prepare;) Wbu?
@@n-kay9676 so basically i still have not decided as i havent registered it yet.... looking for a comfortable month to write the exam ! well when did you start your prep for SAT ?
@@gauravnath8926 well I just finished a five-week sat course and I guess I’m sitting in August because I figured I should take it while the info is still fresh yknow. Btw, I registered for October as well ( I need a decent grade by December). For you, how long have you been studying? Are you required to take the test as soon as possible or is it flexible? Nevertheless, I suggest you take it in August and try your luck! After all, you can redo it as much times you want and there’s still enough time for the August exam! :)
I forgot to mention, I’ve heard that the grading is going to be lighter in august and brutal in may and October, I’m not sure if this is accurate but better safe than sorry
hey John, whatever I try the radius equals 8 in question#1. But the video corrects it saying it's 4. I just want to make sure if it is correct. I really love your videos. I am so nervous right now, MY SAT IS TOMORROW!
Although using the degree based formulas still works, I think using the radian based formulas is more time efficient and intuitive. Arc Length = s = (r)(angle in radians) Sector Area = A = (½)(r^2)(angle in radians) Even if you have to convert from degrees to radians, I think it’s still faster and the numbers you get are smaller which leads to fewer simplification mistakes.
The first question can be solved by using the arclength formula s=r*theta,where r is the radius and theta is the angle measured in radian. Since the arclength is 8pi and the angle is pi radian, by comparing to the formula, the radius is 8.
for the problem shown at 5:40 you could also solve it visually! as someone bad at geometry, i like to just see that section LNO is about 1/3 of the circle so then 96 divided by 3 would be 32. it happens to be the answer! :)
Hello My dear teacher. I got nearly the whole concept about circles. Btw, the beginning is kinda same situation when i faced in circle ⭕ questions But not from now on. Thank you so much again. You rock. ✊✊✊✊✊✊✊✊🙂😊😊
I just found your channel from a reel on CZcams and you just earned my sub because you make math extremely easy and your amazing please Do calculus Integral’s I would greatly appreciate it
7:56 or you can just do it the easier way. We all know that the formula to solve for arc length is (2πr • θ | 360). You already have the angle at the point of intersection which is 60 & you have the circumference which is 96 and is technically the (πr) in 2πr. Now just plug in all the values in your calculator. It is going to be ( 2 x 96 x 60 divided by 360 ) = 32 :D
guys for the first question theirs a even easier method to solve it in my opinion you can set up a proportions to find the entire circumference of the circle. the first thing you do is write a ratio saying 180/360 is equell to 8pi over x and u cross multiply and u find the circumference of the circle then you can use the circumference formula witch is 2piR and solve for the radius and u get 8
Simple tricks for the ques For the first ques 2(pi)r=8pi R=8/2=4 For the second ques just know that the a angle substended by the tangents is half the angle at the centre by the same arc
Hiii, i watched all of these videos took notes and studied hard with other resources too but mostly these vids honestly thank you it was so much help but i think some of the 21 vids werent very helpful and just a waste of time(no offense) because it wasnt on the test i think there are some topics that maybe you can go over more. Btw ij took the test this morning lol some vids def helps too. ill see my score on the 6th wish me luck!!!🤞🏾
For the arc length question, all I did was use the C=pi*D formula. Since a diameter cuts the circle in half, and one half of the circumference is 8pi I just plugged that into the formula. So it would be, 16pi = pi*D. Then, you would divide by pi on both sides to get D = 16. Radius is 1/2 diameter so just do 16/2 = 8. Would that be an acceptable way of approaching this problem?
Quick note. On question 2, you could have skipped some steps by noting that the central angle is twice the exterior angle of 60 degrees. I'm pretty sure that's a theorem.
Thank you sooooo much for this video🥺🥺❤️❤️❤️…VERY EXPLANATORY AND EASY TO UNDERSTAND..you helped me on this one ❤️. Going to watch more videos but first I’ll watch your “stop watching SAT videos (including mine)” video😭🤣❤️
![[October SAT MATH] Complex Numbers: Literally Everything You Need To Know](http://i.ytimg.com/vi/ccuNFso9ssg/mqdefault.jpg)
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Yes, these materials are still tested on the digital SAT. If anything new is added, will create a new video.
Guys, so I don't know what I was going through that day but the correct answer to the first question is 8. Ignore the little 4's added in and just follow the audio (what I say in the video)
.
🏆 3-Step To 700+ On SAT Math Without Naturally Being Good At Math [Free Masterclass]
www.admissionhackers.com/free-training-summer
.
📚 SAT Math Accelerator [6-Week Prep Course]:
www.admissionhackers.com/sma
i was solving and waited for your answer, then i saw 4 and im like shit! i started breaking my head over it coz the problem was too simple, then i saw this, lol XD
At 4:08 consider simplifying left side by merely canceling 2 and 1/2 instead of multiplying both stude by 2. This gives you r pi = 8 pi.
Can you pin this comment I looked all over the comments for this
I thought I was trippin. I was like “dafuq am I doing wrong” cause everything, including the method you showed, gave me 8.
Thank you so much
that is the best intro ive ever watched
Honestly😂
Literally 😂💯🔝
this man teaches with personality, we need more like u
thanks!
Bro, you've just described me in my practice questions
There's a little mistake for #1 (4:14) - Ignore the red 4's and just follow to what I say & write on the screen. The answer is 8.
Gosh I thought I had lost my mind haha
I was so confused for a sec…
Bit lazy of you
someone was sleep deprived while editing
I KNEW IT
I’ve been struggling with circles for sooo long. I’ve watched multiple vids and non of them helped besides yours. THANK YOU SO MUCH!!!
Exactly what I'm looking to hear!!! YOU ARE VERY WELCOME! GOOD LUCK
in case anyone's confused about the problem at 0:44: you have to use the properties of quadrilaterals as well as the inscribed angle theorem to set up an equation and solve for x. all the inner angles of a quadrilateral add to 360 degrees, and the inscribed angle theorem says that an inscribed angle (angle with the vertex on the circumference of the circle) is equal to half of the central angle subtending the same arc. this tells us that a=x/2, and knowing that P=360-x we can set up an equation to solve for x as follows: 20+20+x/2+(360-x)=360, which simplifies to x=80. hope this helps!
So P can be thought of as an angle?
@@cruzmaldonado9897 no p is the point
what worked for me is that I created a new line segment by connecting point P to point A. Line A creates two isosceles triangles on either side of point P. Becuase both legs of the icoscesles triangles have the same angle, I was able to to find that the triangles vertex is equal to 140, as s 2(20)+x=180. then I used the vertex's angle to find the value of x by doing: 2(140)+x=360 which simplifies to x=80.
@@alerod4296 changed my persepctive
bro, you deserve a nobel prize for this serie of videos. You're helping and saving lives lmaooooo
🙏
please he's so dramatic i love it
example 1 (3:14) becomes even easier if you use s=θr for arc length where θ is in radians. 180° is equal to π radians, so you end up with 8π=πr for your equation. if you know this, then getting the answer becomes much easier because all you have to do is divide out π. 8π/π = 8, the answer is C. if you're familiar with radians i'd definitely recommend you use them for problems like this
example 2 (7:25) also becomes easier if you know that 120° is equal to 2π/3 radians. if you keep the radius as 96/2π and plug it into s=θr, you get s=(2π/3)(96/2π). 2π cancels out and 96/3 is 32.
What does that mean?
@@bestselfimprovement3 radians are a different unit for measuring angles and if you know what they are and how to use them the first two examples in this video become easier and faster to solve
@@tylermorris8856 this works perfectly, and if you prefer degrees make sure your mode of your calculator suits, as well as keeping in either degree of radians, I can see you took pre calc definitley
The benefit of using radians is nullified by the fact that (I'm pretty sure) the SAT never uses radians on their questions. Radians get introduced in pre-calc, which is outside of the scope of the SAT. So if you wanted to use radians, you would have to convert to it from degrees. IDK about you, but that doesn't seem worth it to me.
Yes, but if you work with radians you end up memorizing a bunch of values and their degree equivalents. If it's not worth it for you then don't do it but if you can convert quick it's faster
for the first q, the circumference is just 2 times the arc length, 2 x 8pi = 16pi. so 2 x pi x r = 16 pi, therefore r = 8. much easier!
Hey the ans is 8 r8? Why did he said it was 4?
@@somethingdifferent4115 the answer is 8, it's a mistake in the video (see his pinned comment).
Can you explain why 2 x 2pi is not 4pi and still stays as 2pi?
i mean its the diameter so i said 2pi(r)/2 cause its one half of the circle and i got pi(r)=8(pi) so r=8
you can just use r * theta = arc length (make sure to convert the theta to radians tho), its much quicker
feels like he's trying hard to make us understand! appreciate it man ❤️
Appreciate ya!
A little shortcut for 4:43, C represents circumference = 2 pi x r or pi x diameter. The Arc length: Circumference multiplied by the angle over 360. Basically 96 x 120/360 = 32. There's no need to do the extra.
One more tip. The kite type figure is called a cyclic quadrilateral and it has a property that opposite angles are supplementary ie if that was 60 the other ones 120 straight away
@Saien Phlad There are 2, 90 degree angles in the quadrilateral. Since they add up to 180 degrees, we can assume that this quadrilateral is cyclic.
@Saien Phlad Well yes, but honestly you could just tell from a glance that it's cyclic. It saves a lot of time.
math has been my best subject in everything for as long as i can remember but these SAT math questions screw me over so bad to the point my R&W scores are unbelievably higher. so thank you for making these life changing videos because my whole life depends on this score, literally.
same here lol i couldn't believe that my english grade was way higher than math but im working to improve it this august
Only a couple days now!@@yuno6697
I genuinely wanna thank you, you put efforts into your videos and honestly I don’t know what would i do if you didn’t make these little videos. They have helped me immensely. I don’t stand a chance when it comes to maths but I guess that’ll have to change now lol ❤ thanks man!
I appreciate the intros and personality actually making the video engaging
the skit at the beginning was gold, thank you so much for the help!!
For the first question, just use the formula for calculating length of an arc but in radians not in degree =>
Let angle = §
r§ = 8x pie
In radians the angle § = pie so those two cancel out
Hence, radius r = 8
i just plugged that bad boy into desmos and it came out as 8 is the diameter making 4 the radius so he was right
For the ones confused, the answer for Q. 1 is actually 8. Not 4. The correct answer is option C, which is 8.
thank you i was super confued why he changed
TIP- the circle characteristic question- there circumference is already given. So you don't need to find the radius. Just plug in 96 where 2pir is present. As circumfrence=2pir.
Well explained with a brief overview of the the Equations. Very informative
Hi, when the circumference is given , then there is no need to find the radius. Just plug the value in the formula for length of arc
I've just copied your math formula pdf to my note book it was pretty helpful to get me familiar with what you were saying here
literally if i am going to get a good SAT score , you would be a big reason behind it. 🙏
thank you so much i always had difficulties with these type of problems, now i finally understand them. i also have the sat this saturday the 13th im extremely nervous.
I cannot thank you enough man, literally a lifesaver!!
yo yo you commented a week ago ... i wanted to ask you when are you planning on writing the SAT ?
@@gauravnath8926 I’m sitting on August 28. The only reason I’m taking it this early tho is because I’m required to for a program. Only had around a month to prepare;) Wbu?
@@n-kay9676 so basically i still have not decided as i havent registered it yet.... looking for a comfortable month to write the exam ! well when did you start your prep for SAT ?
@@gauravnath8926 well I just finished a five-week sat course and I guess I’m sitting in August because I figured I should take it while the info is still fresh yknow. Btw, I registered for October as well ( I need a decent grade by December). For you, how long have you been studying? Are you required to take the test as soon as possible or is it flexible? Nevertheless, I suggest you take it in August and try your luck! After all, you can redo it as much times you want and there’s still enough time for the August exam! :)
I forgot to mention, I’ve heard that the grading is going to be lighter in august and brutal in may and October, I’m not sure if this is accurate but better safe than sorry
my guy ur literally saving my life ilysm
This intro is so enticing
It makes you want to watch the video till the end.
I really appreciate how well you teach
Thank you
hey John,
whatever I try the radius equals 8 in question#1. But the video corrects it saying it's 4. I just want to make sure if it is correct.
I really love your videos. I am so nervous right now, MY SAT IS TOMORROW!
8 is correct. He said it in a comment
Had the same problem
Although using the degree based formulas still works, I think using the radian based formulas is more time efficient and intuitive.
Arc Length = s = (r)(angle in radians)
Sector Area = A = (½)(r^2)(angle in radians)
Even if you have to convert from degrees to radians, I think it’s still faster and the numbers you get are smaller which leads to fewer simplification mistakes.
interesting! thanks for sharing :)
My SAT's tomorrow and this video is the best thing that happened to me:))
What did you get on it?
@@josephkhayyat4162 i got 1300
@@kimhyung9243 aye congrats
@@josephkhayyat4162 thankyou
bro r should be 8
thank you so much!! these types of questions are my biggest weakness on the SAT. appreciate your help
The first question can be solved by using the arclength formula s=r*theta,where r is the radius and theta is the angle measured in radian. Since the arclength is 8pi and the angle is pi radian, by comparing to the formula, the radius is 8.
for the problem shown at 5:40 you could also solve it visually! as someone bad at geometry, i like to just see that section LNO is about 1/3 of the circle so then 96 divided by 3 would be 32. it happens to be the answer! :)
only if its drawn to scale!
me watching this for my oct sat tom bc circles flamed me last week on the sept sat LMAO
bro this was so helpful. I get so many of these wrong and I wasn't sure how to solve them. Thanks so much
Mister you are amazing!! but I didn't understand what you did in the first example(Arc Length) why did you multip. 2 to be 4
YOU ARE A GODSEND. THANK YOU SO MUCH FOR THESE VIDEOS!
LETS GO FOR THAT 800
Hello
My dear teacher.
I got nearly the whole concept about circles.
Btw, the beginning is kinda same situation when i faced in circle ⭕ questions
But not from now on.
Thank you so much again.
You rock.
✊✊✊✊✊✊✊✊🙂😊😊
Thank you so much. i feel like i have a chance at SATs now. you r a lyf saver bro!!!!
Thanks for explaining this so well and making it funny! This really helped me! 😊
Thanks so much i have my exams on December
I just found your channel from a reel on CZcams and you just earned my sub because you make math extremely easy and your amazing please Do calculus Integral’s I would greatly appreciate it
7:56 or you can just do it the easier way. We all know that the formula to solve for arc length is (2πr • θ | 360). You already have the angle at the point of intersection which is 60 & you have the circumference which is 96 and is technically the (πr) in 2πr. Now just plug in all the values in your calculator. It is going to be ( 2 x 96 x 60 divided by 360 ) = 32 :D
guys for the first question theirs a even easier method to solve it in my opinion
you can set up a proportions to find the entire circumference of the circle.
the first thing you do is write a ratio saying 180/360 is equell to 8pi over x and u cross multiply and u find the circumference of the circle
then you can use the circumference formula witch is 2piR and solve for the radius and u get 8
Simple tricks for the ques
For the first ques 2(pi)r=8pi
R=8/2=4
For the second ques just know that the a angle substended by the tangents is half the angle at the centre by the same arc
Hiii, i watched all of these videos took notes and studied hard with other resources too but mostly these vids honestly thank you it was so much help but i think some of the 21 vids werent very helpful and just a waste of time(no offense) because it wasnt on the test i think there are some topics that maybe you can go over more. Btw ij took the test this morning lol some vids def helps too. ill see my score on the 6th wish me luck!!!🤞🏾
hey no offense taken. Which topics were the most helpful for you?
First example is easier if you use the radian version of arc lentgh formula: s=r * theta
0:50 is the value of x = 80 degrees?
Thank you so much for making these videos
For the first question, you can just do that 8pi = half of the circumference = (2piR)/2 , yields R = 8!!
You are literally a life saver
in question 1 r is acutally 8
BRO LMFAOOOOOO THE LONGBEACH GRIFFY INTRO
finally someone who gets it
For the arc length question, all I did was use the C=pi*D formula. Since a diameter cuts the circle in half, and one half of the circumference is 8pi I just plugged that into the formula. So it would be, 16pi = pi*D. Then, you would divide by pi on both sides to get D = 16. Radius is 1/2 diameter so just do 16/2 = 8. Would that be an acceptable way of approaching this problem?
I had gotten the same answer so much easier.
Extremely useful! Thank you
Glad to hear that. You are welcome. Good luck man
this was super helpful, thank you for putting it out there!!!
i love the acting lmao best intro ever
This video was really helpful
Thanks
God bless you❤️
thank you teacher very helpful video😇😇😇
24 is C
I am also taking the Sat rn😂
Never clicked a video so fast
😂😂😂😂
Please, how do you answer number 14 under arc lengths and sector area ?
BRILLIANT video
thankssssssss glad you liked it 😀😀
Thanks I really love what you doing❤
l just love the first 2 mins!
and w/ a matching shirt! ''EMORY''
thankyou so muchhh
can i please know more about the characteristics cz u didnt talk about them, even in the lecture
Quick note. On question 2, you could have skipped some steps by noting that the central angle is twice the exterior angle of 60 degrees. I'm pretty sure that's a theorem.
Thank you so very much, Sir!
Thank you sooooo much for this video🥺🥺❤️❤️❤️…VERY EXPLANATORY AND EASY TO UNDERSTAND..you helped me on this one ❤️. Going to watch more videos but first I’ll watch your “stop watching SAT videos (including mine)” video😭🤣❤️
haha glad to hear that!
Intro is amazing
the intro is me on the practice tests before this video
Tomorrow's my test day....I've been averaging around 1500 plus...I hope I can get a 1580..
I love the intro, you r the best
Bro you are beast
Your videos are really helpful
I want you to be math teacher in our school🙏
I should not have watched this 1 day before the sat but we ball
you are wonderful, keep it up. love u
You are a real g man
ur a life saver
IN FIRST question you can also apply this concept
ADB Is 8pi which is half of circumference
8pi=2pir/2
Simple as that
Please upload more videos of questions related to every topics and refer some books for the Indian students
Bad day to be SAT
For question 2 circle characteristics instead of solving for radius can’t you just plug in the circumference of 96 to replace 2 pie r
nice and clean man , keep it up
That helped a lot thx a lot
this video saved me
Quick question can you let me know how to access the answer key to the work sheets you posted? :)
First question, We could have said:
πr = 8π
Therefore the r is 8 🤔
Thank you
thanks a lot!
How dont you have more subs? Dude great
Vid
Thank you. 😁
Can you go over the proportion that are used for circles
god bless you bro