Answer :
given the formula, A= πr², to find the radius, make r the subject of the equation.
r = √(A/π)
where we know π= 3.142 corrected to 3 decimal places,
our radius r = √(725/3.142)
= √230.745
= 15.190cm
r = √(A/π)
where we know π= 3.142 corrected to 3 decimal places,
our radius r = √(725/3.142)
= √230.745
= 15.190cm