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題 4
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
三位數除以一位數（一）
sanjiaohanshu
近似值：有效數字
Discover Resources
服务效率：服务水平公式及其与接通率公式的关联
較複雜的周界問題(二)
劉徽的「割圓術」
反演
二元一次方程组001(和差)
Discover Topics
Circumcircle or Circumscribed Circle
Correlation
Sphere
Pie Chart or Circle Chart
Root