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30度直角三角形

Author:郭勇

New Resources

柱體建築師
兩組對邊相等的四邊形
小数的副本
錐體建築師
兩組對邊相等和有直角的四邊形

Discover Resources

兩位數除法
題九
P5三角形的面積
勾股定理证明演示--分割股边
S3 Ch4.1 正四面體的反射平面

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Combinatorics
Cube
Quadratic Equations
Prism
Intersection

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