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slide21
Author:
tao sun
GeoGebra
New Resources
判斷球體
sanjiaohanshu
兩組對邊相等和有直角的四邊形
四邊形的特性
球體建築師
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找出活動所用的時間
quadrilaterals 4
作業 11032
k-ko-
KS2 數學
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Angles
Trigonometry
Trapezoid
Logarithm
Straight Lines