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正方形纸片剪出正三角形(顶点在边上)
Author:
孟宝兴
正方形纸片剪出正三角形(顶点在边上)
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
球體建築師
拼砌四邊形
Discover Resources
指數函數的平移 (3)
格子點
柱體建築師 1的副本
Copia de 分數除法5: x ÷ a/b (包含)
夾擠定理 (The Squeeze Theorem)
Discover Topics
Line Segment
Sequences and Series
Parallelogram
Definite Integral
Congruence