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Author:
湯士賢
GeoGebra
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兩組對邊相等的四邊形
錐體建築師
兩組對邊相等和有直角的四邊形
柱體建築師
判斷球體
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複合形體的表面積(凹形)
How to draw a pentagon with ruler and compasses?
△ A B E △ABE 、 △ A C E △ACE 的內切圓半徑分別為 r 2與 r 1,兩者 可以互換嗎
標準分解式
Triangle
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Coordinates
Probability
Circle
Parallelogram
Area