Question

What is the area of a circle with circumference of 9.42 inches?

Answer 1

I found: `7.06"in"^2`

Explanation:

The circumference `C` is given as:
`C=2pir`
Where `r` is the radius;
`pi=3.14`;

so `r=9.42/(2*3.14)=1.5"in"`

we can use this information to find the area `S` as:

`S=pir^2=3.14*(1.5^2)=7.06"in"^2`