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球的内接三棱锥

Author:冯德福

New Resources

找出對稱軸
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
球體建築師
畫出對稱圖形

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與三半圓相切的圓
Flips
Text in Spreedsheet
P4構作對稱圖形
三角形

Discover Topics

Arithmetic Mean
Cosine
Special Points
General Quadrilateral
Matrices

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