Question

the perimeter of the floor of a room is 50m and its height is 2.5m. find the area of four walls of the room.

Answer 1

let length of floor be l and breadth be b
then 2(l+b)=50 -----------------------------------------------1
now 
area of 4 walls = 2h(l+b)

2.5(50)= 125----------------------ans

Answer 2

Answer:

The answer will be 125....

Hope it's help u....