Lesson 9 - Angle Theorems of a Triangle

作者：Mr. Coffie

This book contains GeoGebra pages that explore the theorems discussed in 10th grade geometry: the triangle angle-sum theorem and the triangle exterior angle-sum theorem.

Sum of the Angles in a Triangle
Triangle Exterior Angle-Sum Theorem

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Sum of the Angles in a Triangle

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Complex numbers
S.2 Ch.7 Simple Statistical Graphs
Tangent Sketch p.3
lista 6 ex 3
Unit Circle with Sine and Cosine graphs (degrees)

探索主題

3D 向量（三維）
作圖
長方體
微分
角度

Lesson 9 - Angle Theorems of a Triangle

Sum of the Angles in a Triangle

Triangle Exterior Angle-Sum Theorem

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