The length of a rectangular park is thrice its breadth. If the perimeter of the park is 168 meters. Find its dimension?
Let the length and breadth of the rectangular park be l and b respectively.
Given, l = 3b ........ (1)
Also, Perimeter of the park = 168 m
⇒ 2 (l + b) = 168
⇒ 2 (3b + b) = 168
⇒ 2 (4b) = 168
⇒ b = 21 m
∴ l = 3 (21) = 63 [ from (1) ]
∴ Length and Breadth of the rectangular park are 63 m and 21 m respectively.