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Copy of opening a cube
Author:
丁明智
,
Arthur Lee
A cube is divided into 6 congruent right pyramids. Drag the yellow dot to 'close' the cube. This shows the volume of a square base pyramid with height equal to half its base edge.
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FnewtonpeignesCx
คณิตคิดเลขเร็ว
สมการเชิงเส้น
9.1.3 Pre #1142779 option C
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