Question

quick math help pls!

Answer 1

Answer:

half of 45.7 is 22.85

22.85^2 = 522.1225

522.1225 x pi

Meaning

522.1225π, A

Answer 2

Answer:

$522.12\pi$ inches²

Step-by-step explanation:

The formula for finding the area of a circle is:

$A=\pi r^2$

If you put 45.7/2 (because you have the diameter and NOT the radius) instead of r you get:

$A=22.85^2\pi$

Now you calculate:

$A=522.12\pi$ inches²