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銳角三角函數
Author:
羅驥韡 (Pegasus Roe)
Topic:
Trigonometric Functions
GeoGebra
New Resources
四邊形的特性
兩組對邊相等和有直角的四邊形
拼砌四邊形
兩位數加法
球体的体积推导（优化版）
Discover Resources
内切花瓣
三角形三內角和為 180°
阴影部分例子
基本不等式
折正五邊形
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Distributions
Similar Triangles
Centroid or Barycenter
Scatter Plot
Diagrams