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变化的三角形的垂心.许兴华数学
Author:
许兴华数学
Topic:
Orthocenter
,
Triangles
GeoGebra
New Resources
四邊形的特性
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
拼砌四邊形
球體建築師
Discover Resources
畫蛇添福
Relationships among 3 Circle Theorems 三個圓定理的關係
Copy of 尋找等腰三角形 Isosceles Triangle Hunt
example1 star
Collatz Conjecture 考拉兹猜想
Discover Topics
Random Variables
Arithmetic Mean
Parabola
Median Line
Sine