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作三角形
Author:
龚佳林
已知三边作三角形（SSS）
GeoGebra
New Resources
兩位數加法
算柱 (兩位數)
柱體建築師
画直线等分三角形的面积
兩位數除以一位數（一）
Discover Resources
Graphs of Linear Equations in Two Unknowns 二元一次方程的圖像
拋物線(開口向上)
ie 3
becca貝卡卡
DANDELIN
Discover Topics
Upper and Lower Sum or Riemann Sum
Secant Line or Secant
Poisson Distribution
Straight Lines
Coordinates