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三角形三边关系探究
Author:
fei zhao
Topic:
Triangles
分辨率1280x720
GeoGebra
2020年7月
New Resources
判斷球體
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
找出對稱軸
三位數除以一位數（一）
Discover Resources
函數切線及法線
Area of triangle using 0.5bs sinA
垂心與垂線
四年級
正三角形繞正方形旋轉
Discover Topics
Optimization Problems
Equilateral Triangles
Quadrilaterals
Secant Line or Secant
Random Experiments