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OpenStudy (anonymous):
Help with two questions please! (geometry finding the area) MEDAL!
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OpenStudy (anonymous):
OpenStudy (solomonzelman):
\(\Large\color{blue}{ \rm{Area~~(pentagon)} =\frac{1}{4}\sqrt{5(5+2\sqrt{5})}~~a^2 }\)
OpenStudy (anonymous):
I got it, its A and B.
OpenStudy (solomonzelman):
http://www.wolframalpha.com/input/?i=area+of+octagon+with+radius+9 for question 2
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OpenStudy (solomonzelman):
I don't usually use wolfram, I am just a little tired.
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