Question

the perimeter of the floor of a room C = 32 and height h = 10.The total area of the four walls​.

Answer 1

Step-by-step explanation:

perimeter of rectangle= 2(l+b)

height=10

now the formula used for finding surface area of walls is 2(l+b)

here you can clearly see there is 2(l+b)when you h. so the procedure is as follow

perimeter =2(l+b)

=30m (already given )

height =10m (also given)

therefore 2h(l+b)

or can be written as 2(l+b)

which is 32×10m

= 320m

therefore the area of four walls of room is 320m^2