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垂直線的斜率
Author:
Anthony OR 柯志明
Topic:
Difference and Slope
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（一）
第八周作业
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
Add and subtract (binary)
方輪與方路
最短距離
五点共圆
四邊形ADFE的面積是多少？
Discover Topics
Addition
Perimeter
Geometric Distribution
Rotation
Quadrilaterals