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Trapezium
作者：
giannie
主題：
幾何
,
四邊形
,
梯形
How many different types of quadrilaterals can you find?
GeoGebra
最新資源
Position and Velocity Vector
apec
Folding door
Untitled
Proving Triangles Similar by Dilation
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forum
Applet for demonstrating Van Aubel's theorem for quadrilater
x Cross Sections
converse of PT
School Final Project
Area of Triangle
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統計
菱形
體積
等腰三角形
正弦