Question

The length of a room is 20 feet and its width is 12 feet. What is the perimeter?

Answer 1

P=2(a+b)
=2(20+12)
=2×32
=64 feet

Answer 2

perimeter = 64 feet

Explanation:

The length of a room is 20 feet and its width is 12 feet.

Perimeter of a room =
`2 \cdot length + 2 \cdot width`

length = 20 feet

and width = 12 feet

Plug in all the values in the formula to find perimeter

Perimeter of a room =
`2 \cdot length + 2 \cdot width`

Perimeter of a room =
`2 \cdot 20 + 2 \cdot 12`

=
`40+24= 64`