Question

A classroom measures 3m x 4m x 6m.
Calculate the volume of air in the room.
The density of air is 1.3 kg/cubic metre. Calculate the mass of air in the room.

Answer 1

Answer:

vol of a Cuboide is LBH

3*4*6=72m³

therefore the dencity is 1.3 X 72 ==93.6Kg

Answer 2

Answer:

3m*4m*6m = $72^{3}$

72*1.3 = 93.6kg/cubic

Explanation:

the volume of the room = the h*l*b

volume of the room * the density of the air = 93.6kg/cubic