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5 squares
Autor:
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?
Novos Materiais
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異分母分數減法
【案例】圆柱体内放置一个大球六个小球
【案例】2013年安徽高考15题
Descobrir recursos
為甚麼二次函數中,a是正數,開口向上?
Demonstration of the angles at the same segment
convolution_demo1
折線
电场线模拟
Explorar Tópicos
Interseção
Aritmética
Segmento
Trigonometria
Experimentos aleatórios