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February 21st, 2019, 09:03 AM   #1
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Joined: Aug 2018
From: alberta

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Figurate number question

Figurate / Polygonal Number Question :

I recently saw the posts on 'reversing figurate number' evaluations at these links
on the forum here ;

Figurate numbers - deriving backwards - Physics and Mathematics - Science Forums

Polygonal Numbers - Backwards Derivations - Physics and Mathematics - Science Forums

QUESTION :

I'd like to be able to find the diameter of any 2d or 3d polygonal, figurate number with 3,4,5, or more sides - based on the figurate number being comprised of circles that have a diameter of 1 inch each.

Id like to be able to describe this with a simple formula that I can
use for any shaped polygonal number, so for example I could apply
this to a square number or a cube number, a pentagonal number, etc...

I think the total circle area would play a part in this?

Any insights and or meaningful feedback, especially tips on how to
construct such a formula would be greatly appreciated!

Thank you!

A
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