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基础知识
Author:
ssyzedu
托勒密定理
圆内接四边形的两组对边乘积之和等于两对角线的乘积。
GeoGebra
推论一(三弦定理)
如果
是圆上任意一点,
是该圆上顺次的三条弦,则
.
GeoGebra
New Resources
算柱 (兩位數)
長方體平面投影 (Codex版)
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
Nested spiral octagon
Discover Resources
BMIBMI
三角形內切三圓
負二項分佈
Is this a prism 5
軌跡練習1
Discover Topics
Unit Circle
Circumcircle or Circumscribed Circle
Kite
Function Graph
Terms