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Geometry 21 Online
OpenStudy (anonymous):

find the scale factor and the ratio of perimeters for two regular pentagons with areas 147in and 12in

OpenStudy (anonymous):

PLEASE HELP SOLVE THIS

OpenStudy (anonymous):

do you have the apothem

OpenStudy (anonymous):

@qwertycoli10

OpenStudy (anonymous):

The ration of area: big pentagon/small pentagon = 147/12 =12,25. Since the area ratio is the square of the side ratio, then, the perimeter ratio is the sqr(12,25) = 3.5. The scale is 3.5.

OpenStudy (anonymous):

@thu1935 Good! He's correct.

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