SOLUTION: I am looking for a formula to find the distance between opposite corners of a cube with side "s"?

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Question 357881: I am looking for a formula to find the distance between opposite corners of a cube with side "s"?
Found 2 solutions by Alan3354, Fombitz:
Answer by Alan3354(69443) About Me  (Show Source):
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
First find the length of the diagonal of one square face using the Pythagorean theorem.
Then use the diagonal as one leg of a right triangle with another side of the cube as the other leg and the hypotenuse will be the corner-to-corner diagonal you're after.
D%5B1%5D%5E2=s%5E2%2Bs%5E2
D%5B1%5D%5E2=2s%5E2
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.
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D%5B1%5D%5E2%2Bs%5E2=D%5Bcc%5D%5E2
2s%5E2%2Bs%5E2=D%5Bcc%5D%5E2
D%5Bcc%5D%5E2=3s%5E2
highlight%28D%5Bcc%5D=sqrt%283%29%2As%29