Problema Solution
A circular pool is surrounded by a walkway 2m wide. Find the radius of the pool if the area of the walkway is 176 square meters. (Hint: Use 22/7 as an aproximation of pi.
Answer provided by our tutors
The radius is R
The areaof walkway = pi*(R+2)^2 - pi*R^2 = 176
Pi = 22/7
So we solve it
R = 13
So the radius is 13 m