What is the area of the pentagon below a 164.025 square inches b 238.95 square inches c 351.78 square inches d 477.9 square inches

It also has a height equal to the pentagon's apothem. (Remember, the height of a triangle runs from a vertex to the opposite side, at a right angle.) To find the area of any triangle, just calculate ½ x base x height. In our example, area of triangle = ½ x 3 x 2 = 3 square units.

The formula of R is R=E divided by I
So the answer is A