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題 2
Author:
HYHivy
,
GeoGebra Institute of Hong Kong
計算下圖的面積。
GeoGebra
New Resources
四邊形的特性
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
小数 的副本
兩位數除以一位數（一）
Discover Resources
Apollonius Problem 7 CCP Inversion simple 34
number line
Congruent Triangles Demo
塗色03
畢氏定理-面積切割法
Discover Topics
Equilateral Triangles
Isosceles Triangles
Linear Programming or Linear Optimization
Bar Chart or Bar Graph
Multiplication