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題 1
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
球體建築師
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
柱體建築師
拼砌四邊形
Discover Resources
國旗
四角柱
駐波
P4_四下_面積（一）(教師版)
Kumamon
Discover Topics
Interest Calculation
Piecewise Functions
Quadratic Functions
Cuboid
Vectors