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OpenStudy (anonymous):
A regular octagon has a side of approximately 4.1cm and an apothem of approximately 5.0cm. Find the area of the octagon.
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OpenStudy (anonymous):
A=2(1+2)a2
OpenStudy (fibonaccichick666):
You either need to know the formula for area of an octagon or derive it. Which do you choose?
OpenStudy (btaylor):
The formula for the area of an octagon is 1/2(apothem)(perimeter).
OpenStudy (anonymous):
im sorry itnumbers my brain jsut shot it self with idiocy im sorry
OpenStudy (anonymous):
Thank you for everyone that replied back ;)
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OpenStudy (anonymous):
even me :D ????
OpenStudy (mathstudent55):
Area of polygon = 0.5 * apothem * perimeter
OpenStudy (mathstudent55):
You have the apothem. You can find the perimeter by multiplying the number of sides by the length of one side. Octagon = 8-sided polygon.
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