Perimeter of rectangle =2×( Length + Breadth ) CALCULATION: Suppose the length of the park =A meter So, Breadth =(A+18) meters Now, Perimeter of plot =2×(A+A+18)=(4A+36) meters Hence, 25×(4A+36)=4100 ⇒(4A+36)=164 ⇒4A=128 ⇒A=32 ∴ Length of the park =32 meters