Hey there!
The answers are 706.5 and 1589.625
The formula for the area of a circle is [tex]\pi[/tex][tex]r^2[/tex].
For the first circle, the radius is 15, so let's solve:
[tex]\pi (15^2)[/tex]
[tex]\pi(225)\\3.14(225)\\\\706.5[/tex]
The second circle has a diameter of 45, and the radius is half the diameter, so 45/2 = 22.5. Let's solve:
[tex]\pi (22.5^2)\\\pi (506.25)\\3.14(506.25)\\1589.625[/tex]
Have a super awesome day!
