Question

1. What is the area of the regular pentagon below?

Answer 1

It's a five sided pentagon with 20 ft sides. I don't get how i can solve it without the apothem.

Answer 2

To calculate the area of a regular polygon,\[A =s ^{2}N/4\tan (pi/N)\]
where
N = the number of sides
s = the length of the side

Answer 3

If s = 20 ft and N = 5
tan (pi/5) = 0.727

Answer 4

Does that help?