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Viviani's Theorem
Author:
Terry Tam
GeoGebra
Sum of the lengths of 3 altitudes of point P on an equilateral triangle ABC = length of altitude of ABC
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正方形雪花图案
龙形曲线-分形龙
第八周作业3
科赫雪花
折扣
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Positive angles & Negative angles
底面為梯形的四角柱表面積
二次函数的图像
滑桿2
圓心在同一直線上且相切的圓(半徑可改變)
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Rhombus
Straight Lines
Power Functions
Arithmetic
Arithmetic Operations