Question

the area of four walls of a hall room is 336sq m. the breadth and height of the room are 18m and 4m respectively. find the length of the hall room

Answer 1

area of the four walls= 2 (l+b)h=336
= 2 (l+18)4=336
=4l+36=336
4l= 336-36

4l= 300
l= 300/4
l=75 m.


answer

Answer 2

area of the four walls=

2 (l+b)h=336

= 2 (1+18)4=336

=41+36=336

41-336-36

41= 300

1= 300/4

I=75 m.