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梯形面積 Area of Trapezium
Author:
Methew Mau
GeoGebra
梯形面積 Area of Trapezium
GeoGebra
New Resources
三位數除以一位數（二）
算柱 (兩位數)
找出對稱軸
兩位數除以一位數（二）
兩組對邊相等的四邊形
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將「文字」標示在長與寬
同學最喜愛的運動
sample mean T test
version 1
三年級除法(三)：一位數除三位數
Discover Topics
Histogram
Pie Chart or Circle Chart
Standard Deviation
Line Segment
Ratios