Question

The perimeter of a rectangular field is 356 yards. If the width of the field is 79 yards, what is its length?

Answer 1

length = 99 yards

Explanation:

the perimeter (P) of a rectangle is calculated as

P = 2(l + w) ← l is the length and w the width

given P = 356 and w = 79 , then

356 = 2(l + 79) ← divide both sides by 2

178 = l + 79 ( subtract 79 from both sides )

99 = l

the length of the field is 99 yards

Answer 2

79 x 2 = 158 yards

356 - 158 = 198 yards

198/2 = 99 yards