Question

find the area of four walls of a room where length equal to 12 centimetre breath equal to 7 centimetre and height equal to 3 centimetres

where the formula is 2h( l + b)

Answer 1

Hi friend, Here's the required answer:-

Length= 12 cm
Breadth= 7 cm
Height= 3 cm.

Area of the four walls= 2h(l+b) = 2× 3( 12+7)= 19×6= 114 cm ^2.

Hope this helps you...

Answer 2

length=12 cm
breadth= 7 cm
height = 3 cm
 

area of 4 walls
=2h(l+b)
=2*3(12+7)
=6(19)

=114 cm²