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畫三角形 題3a
Author:
GeoGebra Institute of Hong Kong
Topic:
Triangles
GeoGebra
New Resources
判斷球體
柱體建築師
找出對稱軸
球体的体积推导（优化版）
拼砌四邊形
Discover Resources
亞瑟的圖像館
進入拋面的平行光會反射至焦點
zuiduan
Angles in a Circle:Property 1
定理介紹：切線性質 | Tangent Properties
Discover Topics
Tree Diagrams
Derivative
Root
Integers
Multiplication