Question

find the area of four walls of a room whose length 3.5 m, breadth 2.5 m and height is 3m.

Answer 1

Area of four walls =2(l+b) h

Here, area =2(3.5+2.5)*3

Area =6*6

Area of four walls =36m²

Answer 2

Answer:

$36\ m^{2}$

Step-by-step explanation:

According to the question

Length of  a room, l = 3.5 m

breadth, b = 2.5 m

height , h = 3 m

We are to find the area of four walls room.

As we know that,

The area of four walls room = 2(l + b) x h

                                               = 2(3.5 + 2.5) x 3

                                               = 2 x 6 x 3

                                               = 36 $m^{2}$

The area of four walls of a room wil be 36 $m^{2}$