Answer:
Step-by-step explanation:
A = C^2 / 4 x pi
so if the circumfernce was 10 you would square it to make it 100 and then you would do 4 x pi to get 12.57 ( rounded).
you would then just divide 100 by 12.57 = 7.96 ( rounded)
hope it helped
You can add a decimal point at the end of number then zero. Example....
2.40
______
5| 12.00
-10
________
20
-20
_______
0
2.4
