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畫三角形 題1a 的複本
Author:
Tony Cheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
柱體建築師
判斷球體
球體建築師
找出對稱軸
兩位數除以一位數（一）
Discover Resources
test
triangle
三角恒等式證明
start and end clock face
三角形面積公式 1/2 bc sinA的副本
Discover Topics
Numbers
Quadratic Equations
Root
Scatter Plot
Symmetry