a rectangular hall has perimeter 36m. the width measure one third of the length . find the length of the hall solve

Answer 1

36 = 2L +2w

18 = L+w

= L+L/3 = 4L/3

L = (3/4)18 = 3(9)/2 = 27/2 = 13.5= 13 1/2 meters Long

w = 13.5/3 = 4..5 = 4 1/2 meters wide

36 (2(13.5) + 2(4.5) = 27+9 = 36