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題 7
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
兩組對邊相等的四邊形
兩位數除以一位數（一）
錐體建築師
Discover Resources
tanx & cotx
自動調整切割數的積分
Ex5D#9
学习计算器套件
多平面鏡反射成像
Discover Topics
Interest Calculation
General Quadrilateral
Quadratic Functions
Vectors
Angles