A crushed-stone walk surrounds a circular flower bed that is 1m wide..math help?!?

Question

A crushed-stone walk surrounds a circular flower bed that is 1m wide. If the area of the entire region is 21.98m^2, find the radius of the flower bed to the nearest tenth centimeter. use pie = 3.14

Answer 1

Pi*r^2 = 21.98 m^2
3.14*(x+1)^2 = 21.98 m^2
(x+1)(x+1) = 21.98/3.14
(x+1) = sqrt(7) = 2.64575131
x = 1.64575131 m = 164.6 cm