Find the length of a side of a square playground whose area is equal to the area of a rectangular field of dimensions 72m and 338 m.
Area of rectangular field = l × b
= 72 × 338 m2
= 24336 m2
Area of square = L2 = 24336 m2
L =
= 156 m
Therefore, 156 m is the length of side of square playground.