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弧長與圓周角成比例
Author:
maths324324
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
判斷球體
球體建築師
Discover Resources
clock
圆与它的外切圆
猴子爬樹
龜甲
三角形
Discover Topics
Complex Numbers
Volume
Planes
Vectors
Linear Programming or Linear Optimization