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proof for calculation of a Piramid — image 1
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proof for calculation of a Piramid

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incased model that can easily hold itself together in a cube demonstrating (base x height) / 3

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Category
Math
License
Creative Commons — Public Domain

I always get the question why must i divide by 3 or multiply by ⅓ to calculate the volume of a pyramid. I made a paper model but it cant stay together , so I've made a model with its cubed case so it can hold itself together.  and it looks nice on my desk. 

this is the proof of why you must divide by 3 because base times height is the formula for a cube, and by dividing by 3 you get of a pyramid.