Exterior Angle Sum

主題：角度

Begin with Sides = 3. Move the Size slider to 0. Watch the angles as they get closer together. What is their sum? Increase both Size and Sides and repeat. What is the sum of the exterior angles (one at each vertex)?

探索資源

unit 6
Theorem 6
Truncated Icosahedron
Copia de Concepte de derivada en un punt
Nature of roots of a quadratic equation

探索主題

平均數
直線
Dilation
平面
餘弦

Exterior Angle Sum

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