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图形的放大与缩小.许兴华数学
Author:
许兴华数学
Topic:
Dilation
,
Geometric Transformations
GeoGebra
New Resources
四邊形的特性
找出對稱軸
三位數除以一位數（二）
兩位數加法
四邉形 (四年級) 教師版
Discover Resources
認識正方形
World's Hardest Easy Geometry Problem.
圓內兩半圓相切問題
Angle in alternate segment
劉徽的「割圓術」的副本
Discover Topics
Pythagoras or Pythagorean Theorem
Derivative
Binomial Distribution
Conditional Probability
Indefinite Integral