Question

The area of four walls of a
serta goom is 90 m². If the room is 7 m long and 2 m wide, then find the height of the room. ​

Answer 1

Answer:

area :- 90m square

length 7m

broad 2m

height ?

area of four walls = 2(l+b)×h

2(7+2)×h = 90

2×9×h =90

18h =90

h = 90/18

h =5

so height is 5 m

Answer 2

Step-by-step explanation:

Find the area of the four walls of a room whose length is

breadth

and height

. Also find the cost of white-washing the walls, if the rate of white washing is Rs.

(Doors, Windows and other opening ignored)