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平行四邊形堆垛
Author:
柳淳珈
New Resources
illusiion 6 平行线错觉
埕瑋_幾何證明_p16_實力演練2
第二次:20190110
直角三角形的內心與相似
Test
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彈道
GGB5_3D:平面截痕
三個硬幣的正面數
Question of the shelter
橢圓折痕
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Numbers
Solids or 3D Shapes
Trigonometry
Similar Triangles
Prism
