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Quiz on Interest 利息：測驗
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
異分母分數減法
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等和有直角的四邊形
球體建築師
兩位數除以一位數（一）
Discover Resources
Equations of Circles 圓方程
圓錐切球
三角形面積公式A
拼砌四邊形
劉徽的「割圓術」 的複本
Discover Topics
Pie Chart or Circle Chart
Dilation
Vectors 3D (Three-Dimensional)
Subtraction
Definite Integral