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Help!!! pick one awnser out of the four in the picture!!! the dark one is not the awnser! Calculate the area of the regular pentagon below: A regular pentagon with side length of 11.8 inches and dotted
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Help!!! pick one awnser out of the four in the picture!!! the dark one is not the awnser! Calculate the area of the regular pentagon below:

A regular pentagon with side length of 11.8 inches and dotted line from center to middle of side of 8.1 inches.

Help!!! pick one awnser out of the four in the picture!!! the dark one is not the-example-1
User Lwe
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2 Answers

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The answer is B 238.95 square inches
User Ankur Soni
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The dark one is double the correct answer. You forgot the factor of 1/2.

A = (1/2)Pa . . . . . P is perimeter (5*11.8), a is apothem (8.1)

A = (1/2)*5*11.8*8.1 = 238.95 . . . . square inches
User Nathan Friend
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6.0k points
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