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Roger Test Draw
Author:
rogerp
Test draw of 2nd degree polynomial, ver2
GeoGebra
New Resources
画直线等分三角形的面积
算柱 (兩位數)
找出對稱軸
兩位數除以一位數（二）
拼砌四邊形
Discover Resources
圓面積計算
gyz3d Hyperbolic Paraboloid
橢圓折痕
All in one (centres of triangle)
劉徽的「割圓術」的副本
Discover Topics
Quadratic Functions
Pyramid
Numbers
Vectors
Definite Integral