Triangle Sum Proof (using transversals)

主題：幾何

Use this dynamic activity to explore how you can prove that a the sum of the interior angles of a triangle is 180 degrees, using transversals of parallel lines.

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ellipse hyperbola study
Finding the Roots of the Quadratic Equation
Rugby
Paper Folding Axiom 3
featuresofstate

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不等式
線性規劃或線性最佳化
三角函數
直角三角形
分段函數

Triangle Sum Proof (using transversals)

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