Question 54763
A=PI*r2 
113.04=(3.1415)*r^2 [Is the "r" value raised to the 2nd power?]
113.04/3.1415=r^2
35.9828=r^2
sqrt(35.9828)=sqrt(r^2)
5.998=r
.
Check by plugging all of the variables back into the original equation.