Internal angle sum of triangles

Autor:mrsK

- Drag the vertices A, B, C to create different types of triangles. - Use the sliders to create copies of the same triangle and prove that the internal angles always add up to 180 degrees.

Novos Materiais

巧算長方形周界
Nikmati Keunggulan Di Bandar Judi Terpercaya
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