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OpenStudy (anonymous):
What is the area of the regular octagon with a side length of 10 m and an apothem of 12.1 m?
A.<<
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OpenStudy (anonymous):
@acxbox22
OpenStudy (acxbox22):
the formula for area of a regular polygon is A=1/2(perimeter)(apothem)
OpenStudy (acxbox22):
what is the perimeter?
OpenStudy (anonymous):
umm im not sure
OpenStudy (acxbox22):
an octagon has 8 sides with each side measuring 10 m so the perimeter=8 x 10
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OpenStudy (anonymous):
so 80
OpenStudy (acxbox22):
yes now plug in 80 for perimeter and 12.1 for apothem into the equation and solve for area
OpenStudy (anonymous):
So D
OpenStudy (anonymous):
Or is it C
OpenStudy (acxbox22):
|dw:1426266830800:dw|
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