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Area of Triangle_1
Author:
jack1012
Topic:
Area
兩個三角形會組合成一個平行四邊形嗎?
GeoGebra
New Resources
兩位數加法
第八周作业
兩位數除以一位數（二）
柱體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
Key stage 1
椭圆的参数方程
+55++5+5
圖形的周界
Tangent of circle
Discover Topics
Random Variables
Statistical Characteristics
Random Experiments
Cone
Hyperbola