Question 363723
I will assume the following problem: Areas of two circles. The radius of a circle is 1 meter
longer than the radius of another circle. If their areas differ
by {{{5pi}}}square meters, then what is the radius of each?

Then the answer is as follows:
{{{pi(r+1)^2 - pi*r^2 = 5pi}}}.  Clearing the equation of {{{pi}}} and simplifying, {{{r^2+2r + 1 - r^2 = 5}}},
{{{2r + 1 = 5}}},
or r = 2 meters, the radius of the smaller circle, and r +1 = 3 meters, the radius of the bigger circle.