Triangle Angles Exploration

主題：角度

Use the applet below to explore the relationship between the interior angles of a triangle. What do you notice about the angles of the triangle ADE? Note that line AB is parallel to segment DE.

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Reciprocal cosine function
Parallel Lines Converse Therorem
y-axis reflection
Kimberling numbers
Modul 18_Turunan_Rusdiyanto_SMK Bina Putera Nusantara

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積分
梯形
平均數
矩形
幾何中心或重心

Triangle Angles Exploration

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