The scale on a set of blueprints of a house is 1 in. = 3 ft. On the

blueprint, one of the bedrooms measures 3.75 in. wide and 4.5

in. long. What is the perimeter of the actual bedroom?

40.5 feet

Step-by-step explanation:

It was given that the scale is 1 in. = 3ft.

The perimeter of the blueprint measures 3.75 in. wide and 4.5 in. long.

The perimeter of the blueprint is

Perimeter = 2 (l+w)

We substitute the length and width to get:

Perimeter=2 (3+3.75)

Perimeter=2 (6.75)

Perimeter=13.5 in

To find the perimeter of the actual bedroom, we multiply by 3.

Perimeter of actual bedroom = 3*13.5 ft=40.5ft