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Algebra 13 Online
OpenStudy (anonymous):

help me

OpenStudy (luigi0210):

*Question~

OpenStudy (anonymous):

if a wire is bent into the shaped of a square , then the area of the square is 81cm^2 when wire is bent into a semi circular shape , then the area of the semi circle will be

OpenStudy (luigi0210):

Do you know the formula for area of a square?

OpenStudy (anonymous):

yes i got ans but this not match with options

OpenStudy (luigi0210):

So you got 9 as the side? The diameter will be 9 as well, and we must cut that into fourths

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