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三角函數
Author:
Tina Lin
Topic:
Trigonometric Functions
GeoGebra
New Resources
常见四边形是否是双心四边形
第八周作业
活动三:应用性质
折扣
平行線的判定
Discover Resources
圓繞圓
雪花(碎形)
圓的平移
與三個半圓相切之圓家封閉面積
Copy of 分數與小數
Discover Topics
Geometry
Integers
Square
Rational Numbers
Similar Triangles