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三巧板
Author:
Tree
GeoGebra
運用以上三塊圖形板拼合出下面的圖形: (a) 等腰直角三角形 (b) 長方形 (c) 平行四邊形 (d) 梯形
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Play C3 E3 G3 C4_C4
van Aubel's Theorem
Slope of a Straight Line: Run and Rise
Supplementary Angles
Teorema Japonês para quadriláteros inscritos em uma circunferência
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Mathematics II Worksheet Collection
polygon
Piramida
Navigating a Table of Equivalent Ratios: IM 6.2.12
几个经典面积计算题
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Angles
Parabola
Upper and Lower Sum or Riemann Sum
Planes
Integers