The Missing Square Puzzle

The missing square puzzle is an optical illusion used in mathematics classes to help students reason about geometrical figures; or rather to teach them not to reason using figures, but to use only textual descriptions and the axioms of geometry. It depicts two arrangements made of similar shapes in slightly different configurations. Each apparently forms a 13×5 right-angled triangle, but one has a 1×1 hole in it.
Puzzle on AliExpress s.click.aliexpress.com/e/_984Jq0

[@MPV-Tamizhan]

Ans.
Its an illusion, i.e slope of the triangle is not the same, i.e hypotenuse oda angle is different

[@parnico26]

The aria of red triangle is bigger than summed aria of paper pieces (the squares measure not like square of red triangle, the squares are cut)

[@lizz18362]

What are you talking about? The entire red outlined shape would have the same square as the pieces that you suggest are smaller.

[@mordechaifogel6069]

Optical illusion. The lines of the second triangle aren’t straight. The pieces in the second triangle exceed the borders of the first one.

[@nanisoreh2464]

ah, infinite chocolate 🍫

[@oraclegps]

The first triangle the complete one area is smaller than the one with the missing rectangle optical illusion you think both have the same area

[@jrrns]

These videos are not honest, the figures have small differences in measurements and when changing the missing area it reveals that it fits tight, and then they are still kidding saying that this and that is Mathematical Fibonate, making us suckers 🤮

[@danilodelgadocu]

I found a problem: square triangle #1 8 by 3 and square triangle #2 5 by 2 are not related; the real relation by Tales is 8/3 = 5/x then x = 15/8 = 1.875

[@eduyeds]

Nice one!

[@world_of_engineering]

Thank you very much 🙂

[@narutokunn]

Does it come from the gap between the edges?

[@patriknorqvist8519]

No. The shape of the triangles are not the same. 4*2 and 7*3. The middel of long side of the total triangle moves depending on the position of the two triangle pices.

[@thatsnotmyname4424]

So yes?

[@patriknorqvist8519]

@@thatsnotmyname4424 The long side of the triangle (the hypotenuse) is not a straigth line, it just looks that way. No gaps between edges.

[@Decentkamena19]

My calculator says 3000^90 = error 😂😂any explanation?

[@user-ik5mu7nu9k]

Magic 🪄

[@world_of_engineering]

Thank you!

[@MPV-Tamizhan]

Indha kelvi ya yaru kitta kekura pathiya😂😂 oru ni emmathuranu solra😂question kuda puriyala avanungaluku, oruthan loosa iruku nu solran😂, innu oruthan length adjustment nu solran😂😂... Enda dai😂😂
Ans.
Its an illusion, i.e slope of the triangle is not the same, i.e hypotenuse oda angle is different

[@ramkrishnamitra9308]

What is the answer. Pl. Explain

[@oraclegps]

The first triangle the complete one area is smaller the the one with the missing rectangle optical illusion you think both have the same area

[@lizz18362]

​@@oraclegpswhat the heck are you talking about? It has a border that it fits into before and after it's rearranged. What's the optical illusion? Sounds like you're just making stuff up

[@koun4984]

摩訶不思議

[@mostafaali5916]

How

[@world_of_engineering]

Math and geometry

[@chubber911]

@@world_of_engineering what a lame comment

[@kumikones]

@@world_of_engineering Could have used this as an opportunity to teach, but I guess that's not what this video or channel is for.

[@zentist00]

If you'd make the small triangle 3 units wide, instead of 2, its length would be 7.5: the two triangles together do not actually make a straight line, in the beginning, there's a small outward dent, then inwards. That difference in area is enough to free up one square.

[@wursthansi]

Fake. Old.