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垂心(劉虹圻623)

Author:呂麗珠

Topic:Orthocenter

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多邊形的面積
画直线等分三角形的面积
祖冲之的期望：内棋与外棋
球体的体积推导
直線的斜率：水平變化 & 鉛垂變化

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等腰直角三角形
歪斜線
GGB DAY3
完整地球儀
複數平面-Apple Logo

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Pie Chart or Circle Chart
Reflection
Parametric Curves
Square
Bar Chart or Bar Graph

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