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8.4-1 两条直线的位置关系
Author:
GeoGebra Institute of WuXi
GeoGebra
New Resources
兩組對邊相等的四邊形
画直线等分三角形的面积
兩位數加法
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Discover Resources
quadrilaterals 5
異分母的分數加減
combos ()
gyzpa 拋物面鏡的反射
reflectional symmetry_6
Discover Topics
Statistical Characteristics
Arithmetic Mean
Vectors 2D (Two-Dimensional)
Exponent
LCM and GCD