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正三角形
Author:
陳幽靈
Topic:
Equilateral Triangles
New Resources
兩位數除以一位數(二)
柱體建築師
三位數除以一位數(一)
兩位數除以一位數(一)
第八周作业
Discover Resources
How to draw a square with ruler and compasses?
正六角柱
string art
杨辉三角
椭圆的离心率
Discover Topics
Parallelogram
Equations
Straight Lines
Dilation
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