Question 1071812
A circular park of 28m diameter has been constructed.
 A 3.5m circular track outside has been developed along the park.
 Using algebraic formula, find the area of the track around the park.
:
The radius of the park: 28/2 = 14m
The radius of the park and the circular track: 14 + 3.5 = 17.5m 
Track area = overall area - park area
TA = {{{(pi*17.5^2)}}} - {{{(pi*14^2)}}}
TA = 962.11 - 615.75
TA = 346.36 sq meters is the area of the track around the park