Question

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.

Answer 1

The answer is B 238.95 square inches

Answer 2

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