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角的介紹 | Introduction to Angles
Author:
Ricky LI
,
camabula
GeoGebra
New Resources
近似值：有效數字
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
判斷球體
三位數除以一位數（一）
Discover Resources
展開基本
GeoGebraBook(for20151202)
angles sum of a triangle 2
正三角形
活動工作紙LEVEL02
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Random Experiments
Kite
Geometric Transformations
Isosceles Triangles
Coordinates