Question

the area of four walls of of a room is 91 square if the room is 13m long and 4.5 metre broad find its height​

Answer 1

Answer:

The height is 2.6 m.

Step-by-step explanation:

Area of four walls= CSA of the cube=91 Sq. m

l=13 m

b=4.5 m

h=?

CSA=2h (l+b) Sq. u

91 = 2×h×(13+4.5) Sq. m

91 = 2h×17.5

h= 91/2×17.5

=91/35

h=2.6 m