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基測數學100-1-30 ：等腰三角形求角度
Author:
arist
Topic:
Isosceles Triangles
GeoGebra
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圓的基本性質
讀磅
折扣
百分數及其應用
正方形雪花图案
Discover Resources
三角形外角和
Scientific Notation 科學記數法
垂心的動畫
Triangle
加法与乘法
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Arithmetic Operations
Real Numbers
Numbers
Secant Line or Secant
Rotation