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三角函數的精確值
Author:
Lionheart William
,
Nick Kochis
Topic:
Circle
,
Triangles
拖拉圓上的綠點,查一查不同角度的三角函數是多少?
GeoGebra
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柱體建築師
兩位數除以一位數(一)
GeoGebra笔记功能体验课件
画直线等分三角形的面积
兩組對邊相等的四邊形
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三角形
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二面角的副本
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Fractions
LCM and GCD
Equilateral Triangles
Upper and Lower Sum or Riemann Sum
Addition