Answer :
Given that the dimensions of the wall are length = l = 18 ft and breadth = b = 12 ft.
Then the area of the wall is
A = l x b
On putting the values we have
A = 12 x 18 sq ft = 216 sq ft
Hence, the insulation will be needed of 216 sq ft.
Given that the dimensions of the wall are length = l = 18 ft and breadth = b = 12 ft.
Then the area of the wall is
A = l x b
On putting the values we have
A = 12 x 18 sq ft = 216 sq ft
Hence, the insulation will be needed of 216 sq ft.