Internal angle sum of triangles

作者：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.

探索資源

Exercises Line Bisectors
Partial Derivatives in 3D
Pythagorean Theorem (continuation)
Fret Graph Project TristanD
Incircle and Circumcircle'in kopyası

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圖
立方（體）
錐體
柱體
不等式

Internal angle sum of triangles

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