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圓錐截痕
Author:
洪宜慧
GeoGebra
New Resources
画直线等分三角形的面积
球体的体积推导(优化版)
三位數除以一位數(二)
兩位數除以一位數(一)
垂直線的斜率
Discover Resources
藝術
parallelogram
圓周角觀察操作
拋物線:切線與弦中點
劉徽的「割圓術」的副本
Discover Topics
Line Segment
Rectangle
Subtraction
Derivative
Matrices