Copy of opening a cube

作者：Natalia, 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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Creating a quadratic sequence
DYLEN-B3-REFLECTIONS
Why is the word "corresponding" important? Part 3
y' = 0.5x + y – 1 2007 #5
Determinant Proof

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橢圓
指數函數
周長
數
多項式函數

Copy of opening a cube

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