Two Methods to Calculate the unknown angles | Learn how to Solve the Geometry problem Quickly
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- čas přidán 30. 07. 2024
- Learn how to find the unknown angles in the given diagram in two methods. Solve this tricky geometry problem by using the Exterior Angle Theorem.
Today I will teach you basic tips and hacks to solve this tricky geometry problem in a simple and easy way. Step-by-step tutorial by PreMath.com
• Two Methods to Calcula...
Need help with finding the angle X in this complex Geometry question ? You're in the right place!
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Two Methods to Calculate the unknown angles | Learn how to Solve the Geometry problem Quickly
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Great, thanks. I'm teacher too, but always learn with your videos.
You are welcome!
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Um Br aqui ?
@@natolejano2486 Siiim
Nice and easy question..😊👍.
... I showed long but it's easy solution...
Exterior angle,
8x= 5X+z
So, z= 3x
Now exterior angle,
6x=5x+y
So, y= x
In triangle,
5x+ x+3x= 180°
9x=180°
x= 20°
So,
5x= 100°
6x= 120°
8x= 160° ans...
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Nice problem, here's my approach;
sum of interior angles a,b and c =180º
180º minus angles angle c = angle a +angle b
180º-5x=180º-6x + 180º-8x
180º-5x=360-14x
14x-5x=360º-180º
9x=180º
x=20º
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bài toán tính toán góc hình học rất hay.
Beautiful sharing ❤️🙏 sir
Thanks a lot
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Awesome👍
Thanks for sharing😊😊
Thank you too
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Thank you for your video. I solved it myself prior to watching yours, by your "second method" as it is simplier to do it.
Nice work!
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An in-your-head quickie with the External Angle Theorem.
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Thanks for video.Good luck sir!!!!!!!!!!!!
Thank you too
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I was completely pleased that I could solve it !!!
Excellent!
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Brilliant Sir💡
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Step 1:
6x = 5x + β
β = 6x - 5x = x
Step 2:
8x + β = 180°
8x + x = 180°
9x = 180°
x = 20°
α = 9x - 6x = 3x = 3 * 20° = 60°
β = x = 20°
γ = 5x = 5 * 20° = 100°
Excellent!
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Thank you sir 🙏😊🙏...
Most welcome, dear
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Yay! I solved it. I used the first method, but it is nice to know the second method.
The 2nd method can be derived from the 1st method.
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Thank you sir
So nice of you, Mahalakshmi
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Sir I was know how solve but you really good 👍 love from india❤️❤️
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Got it in less than 20 seconds.
Solved on my own before playing the video and fast forwarded to the end to double check if my answer matches with the video which turns out it did.
I used Method 2 because it is faster
Super!
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Very easy, define variables, the sum of the angles in a triangle equal 180 degrees, solve.
Excellent!
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Very good question❤️
Excellent!
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5x+180-6x+180-8x=180, 360-9x=180, 9x=180, x=20, 6x=120, 5x=100, 8x=160.
Ans : 5x = 100, 6x = 120 and 8x = 160
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Nice video
Glad you think so!
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100°; 120°; 160°
I would use the exterior angle theorem twice to determine the value of the two unknown angles in terms of x.
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Your math videos are among my favorites with your clear explanations of each step. Watching these are a good way to keep one's brain active.
@@RobG1729 Thanks dear. You are the best!
Do you know of the connection between 1729 and Ramanujan?
Another way was that angle ABC = 6x - 5x = x.
Then x + 8x = 180.
9x =180.
x = 20.
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Excellent!
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Merry Christmas 🌲⛄ Pleasant Christmas vacation 🤩
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Simple problem, x= 20°. Triangle angles: 60°;100°;20°
Easy Peasy: x = 20° 😉
120° , 100° , 160° ∆
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Very easy
since x=20 then
100 , 120, 160
5x+8x-5x=180, 14x-5x=180, 9x=180, x=20,....
6x = 5x + 1x; 1x + 8x = 180; 9x = 180; x = 20;
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@@PreMath . with respect to your talent, from Russia
@@jakkima1067
Thanks dear. You are the best!
X=20
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x=20
Excellent, Giuseppe!
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nothing difficult
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