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長方形和正方形的面積_題A至E
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Rectangle
,
Square
GeoGebra
New Resources
兩位數加法
柱體建築師
四邉形 (四年級) 教師版
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
grass eating
銳角三角：tan
任务1：一次、二次函数的绘画
Quiz on Addition and Subtraction of Directed Numbers (2)
二分法优化版（视频教程见https://www.bilibili.com/video/BV1ST4y1F78g）
Discover Topics
Binomial Distribution
Similar Triangles
Scatter Plot
Probability
Continuity