Hi DoraTheExplorer36!
In order to solve number 10:
area of a circle : A=pie * radius (r) squared
A=πr2
Radius is half of a circle and diameter is a full line across a circle
Solve :
A=πr2
A= 3.14 * 11 (radius) 2
1193.0116
Rounded to the nearest whole number is : 1193.
Your answer would be 1193.
Hope that helped! :)