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平行四邊形
Author:
Yip Chi Wai
Topic:
Parallelogram
GeoGebra
New Resources
祖冲之的期望:内棋与外棋
讀磅
圓周公式的應用
三角函数 的副本
直線的斜率:水平變化 & 鉛垂變化
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固定三角形的條件−題5
基測數學100-1-30 等腰三角形的角度
dragon(龙)
诱导公式三(x轴对称关系)
二元一次方程组001(和差)
Discover Topics
Diagrams
Arithmetic Mean
Similar Triangles
Secant Line or Secant
Trigonometry