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OpenStudy (anonymous):
To the nearest square unit, what is the area of the regular heptagon shown below? A. 3566 square units B. 1019 square units C. 509 square units D. 1783 square units
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OpenStudy (anonymous):
OpenStudy (anonymous):
really stuck
OpenStudy (aum):
Find the area of one triangle formed by connecting the two vertices of the base to the center. Then multiply that by 7 to get the total area of the heptagon.
OpenStudy (aum):
|dw:1412112277245:dw|
OpenStudy (anonymous):
Thanks @aum its 1783
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OpenStudy (imstuck):
Or you could use the area formula for a regular polygon, which is A=1/2ap, where a is the apothem (23 in your case) and p is the perimeter (7 * 22.15). To me that's easier.
OpenStudy (aum):
Yes, 1783.
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