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Right triangle animations

4 verified, narrated animations about right triangle, reviewed by hand and checked frame by frame. Watch free; download the video or the Manim file with any paid plan.

The law of cosines is Pythagoras with a correction
The law of cosines is Pythagoras with a correction

A triangle with sides a and b and included angle C morphs while c is computed live from c squared equals a squ…

Pythagorean Theorem With A 3-4-5 Triangle
Pythagorean Theorem With A 3-4-5 Triangle

A right triangle with legs 3 and 4 units and hypotenuse 5 units is drawn on screen, with squares built on each…

Why sin^2 + cos^2 = 1
Why sin^2 + cos^2 = 1

A point travels around the unit circle while its horizontal and vertical projections trace cosine and sine val…

Why a² + b² = c²: rearrange four triangles
Why a² + b² = c²: rearrange four triangles

Two identical large squares each contain four congruent right triangles arranged differently. In one square th…

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