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5 squares
Forfatter
johnmayhk
GeoGebra
Purple points are mid-points of corresponding line segments. Drag blue points to change the size and orientation of squares. Are two red line segments perpendicular to each other always?
Nye Materialer
判斷球體
三位數除以一位數(二)
四邊形的特性
【案例】2013年安徽高考15题
兩位數除以一位數(一)
Opdag Ressourcer
梯形(面積)
梯形堆垛
同位角---不平行綫
二重積分 (Double Integral)的副本
等比数列计算练习
Udforsk emner
Trigonometriske funktioner
Sandsynlighed
Omskreven cirkel
Binomialfordeling
Bestemte Integral