Question

A hall is 17.5 m long, 12.5 m wide and 5 m high. Find: (a) the area of its four walls, and (b) the area of its floor,​

Answer 1

Answer:

area of four walls = 300 m^2

area of floor = 218.75 m^2

Step-by-step explanation:

To find area of four walls of a room the formula is -

2( l + b) h

= 2( 17.5+ 12.5) 5

= 2(30)5

= 60 x 5

= 300 m^2

To find area of the floor we multiply the length and breadth NOT THE HIEGHT.

L X B

= 17.5 x 12.5

= 218.75 m^2

HOPE IT HELPS