Geometry: Sum of the angles in a triangle (a one-minute proof)
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YouTubeSocratica
Geometry: Sum of the angles in a triangle (a one-minute proof)
We prove that the sum of the angles of any triangle is 180°. It is important to develop the skill of proving things, because when you understand *why* something works, it reinforces your knowledge. To learn more Geometry, you can watch our playlist from the beginning: https://bit.ly/GeometrySocratica You might also like our videos about How to ...
Dec 19, 2013
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