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平行的角度
Author:
周桂名
兩平線的角度關係! 看不出來,移動M點試試!
GeoGebra
New Resources
三位數除以一位數(一)
【案例】2018年全国1卷理科12题
四邊形的特性
找出對稱軸
兩組對邊相等和有直角的四邊形
Discover Resources
proof SSS
gjh-g03-00 和的平方公式
DSE Circle-ACT06 Relationship of Tangents and Radius of a Circle
Perimeter
編織圓
Discover Topics
Functions
Planes
Real Numbers
Pie Chart or Circle Chart
Limits