Question

A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls. Find the height of the hall.

Answer 1

Answer:

area of floor = 15 × 12 = 180m²

sum of area of floor and ceiling = 180 + 180 =360m²

let the height be h

sum of areas of 4 wall = 2 ( h × 15 ) +2 ( h×12)

=30h+24h

=54h

54h=360

h = 360÷54|

h=6.666....