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angle at centre vs angle at circumference
Author:
johnmayhk
Topic:
Circle
GeoGebra
New Resources
兩位數除以一位數（二）
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
兩位數加法
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畫三角形 題2e
錐體建築師 4
向量分點公式
How to draw a decagon with ruler and compasses?
小正多边形在大正多边形内的滚动（边长不相等）
Discover Topics
Geometric Mean
Translation
Rational Numbers
Cuboid
Tree Diagrams