Question 428607
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The area of a regular *[tex \Large n]-gon with side length *[tex \Large s] is given by:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ A\ =\ \frac{ns^2}{4\cdot\tan\left(\frac{180}{n}\right)]


For your problem, n = 10 and s = 70 divided by 10.  Do your own arithmetic.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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