Question

The area of four walls of a hall is 320 m square the length and breadth of the hall are 12.5 M and 7.5 M find the height of hall

Answer 1

area of four wall = 2 (L+B) ×h

320 = 2 (12.5 + 7.5 ) ×h
.
320 = 2 × 20 × h

320 = 40 × h

h = 320/40 = 8