Answer:
196,035,628
Step-by-step explanation:
Hello!
To find the area of a circle you do

the "r" stands for radius which is half the diameter
So we do

Which gives us the answer of 314.16
Hope this helps!
3 1/2r=28
7/2r=28
r=(28/1)(2/7)
r=8
I had to do this and it’s fake, my whole class got it wrong even though we all put the right answer so ya