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Mathematics 7 Online
OpenStudy (anonymous):

What is the area of a rectangular octagon with a side of 8 in.? Round the answer to the nearest tenth.

OpenStudy (anonymous):

@hl147 this is easy i just forgot the steps to get the answer. help?

OpenStudy (anonymous):

\[2(1+\sqrt{2})a ^{2}\]

OpenStudy (anonymous):

where 'a' is the side length

OpenStudy (anonymous):

309

OpenStudy (anonymous):

correct

OpenStudy (anonymous):

Thanks for the help

OpenStudy (anonymous):

309.0 If they're picky

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