Question

Find total area of four walls in each of rectangular room having length 10m breath 5m height 4m .

Answer 1

Answer:

120 m²

Step-by-step explanation:

Area of the 4 walls = Perimeter of the floor x height

Area of the 4 walls = 2(10 + 5) x 4

Area of the 4 walls = 30 x 4

Area of the 4 walls = 120 m²

Answer: The area of the 4 walls is 120 m²

Answer 2

Answer:

Area of 4 walls = 120 m^2

Step-by-step explanation:

It is given that,

Length of room = 10 m

Breadth = 5m

Height = 4m

To find the area of walls

There are 4 walls in the room. The walls are rectangle in shape

2 walls have dimension Length 10m and breadth  4m

Area of rectangle = Length x breadth = 10 x  4 = 40

Area of 2 rectangle(wall) = 2 x 40 = 80 m^2

2 walls have dimension Length 5m and breadth  4m

Area of rectangle = Length x breadth = 5 x  4 = 20

Area of 2 rectangle(wall) = 2 x 20 = 40 m^2

To find total area of 4 walls

Toptal area = 80 + 40 = 120 m^2