Internal angle sum of triangles

Author: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.

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Damped Trochoidal Curve
Untitled
Model sferyczny - dwunastościan-dwudziestościan
Rolling an Equilateral Triangle
Fourier Lissajous (Mechanical)

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rectangle
Объемы цилиндра и конуса
Perpendicular Bisectors of a Triangle
Rotorelief 1
Parachute V4

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Hypergeometric Distribution
Fractal Geometry
Logarithm
Dilation
Solids or 3D Shapes