Question

Write and equation for the area of the circle given the following conditions:

d = 15

Answer 1

A = π (7.5)²

Explanation:

A = π r²

A = area

r = radius

radius is half of the diameter, so the radius is half of 15, therefore radius is 7.5. Plug that in, and you get the equation. To solve, just put π (7.5)² into your calculator to get the area