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Ex_86
Author:
早苗雅史
GeoGebra
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正１７角形 作図 regular 17-gon 2
等積変形2
接点の作る円は内接円
二次曲線と離心率
standingwave-reflection-free
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円周角の定理の逆
円の回転体
三角形の心
三角形の心＋３
算法天生法指南一之巻(04)解答
接線三角形
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LCM and GCD
Volume
Geometric Transformations
Surface
Rational Numbers