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同底等高的三角形面积相等.许兴华数学
Author:
许兴华数学
Topic:
Triangles
GeoGebra
New Resources
平行線的判定
第八周作业2
双心四边形
折扣
撒针估算面积实验
Discover Resources
只跳躍一次的函數
奠基活動20141008
畢氏定理動態證明(歐基里得,平形四邊形等面積2,應用時間參數跳躍函數配合向量)
與三半圓相切之圓填色
環環相扣
Discover Topics
Matrices
Complex Numbers
Arithmetic Operations
Frequency Distribution
Derivative