Question

The perimeter of the figure is 90ft. What is the area.

Additional knowledge: figure is a semi circle, use 3.14 or 22/7 as pi to solve

Answer 1

1289.8089172

Explanation:

if you do 90 x 2 = 180 you get the circumference of what would be the complete circle, the formula for area with circumference is A = (C^2/4x3.14) so inserting 180, the answer is 2579.61783439, and half of that is a semi circle so 2579.61783439/2 = 1289.8089172