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上和與下和
Author:
yuchengda
Topic:
Geometry
GeoGebra
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錐體建築師
【案例】2018年全国1卷理科12题
異分母分數減法
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
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try_111
雜類,其他
迪卡兒送給公主的信
test
Homework7
多邊形面積探究1
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Right Triangles
Congruence
Variance
Dilation
Orthocenter