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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
Nested spiral octagon
畫出對稱圖形
直角坐標平面上的旋轉變換
判斷球體
sanjiaohanshu
Discover Resources
永遠垂直、以像素為單位的向量？
waaachen
Polygon incised
向量與坐標
test for fun的副本
Discover Topics
Parallelogram
Rational Numbers
Linear Regression
Multiplication
Angles