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畫三角形 題1d 的複本
Author:
Tony Cheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等的四邊形
錐體建築師
兩位數除以一位數（二）
四邊形的特性
【案例】圆柱体内放置一个大球六个小球
Discover Resources
認識函數
證明三角形內角和180度
與三個半圓相切之圓的填滿
鉛筆畫圓
随机分支长度的二分树的副本
Discover Topics
Line Segment
Logarithmic Functions
Arithmetic Operations
Statistics
Unit Circle