Question

on the blue print for a house a rectangular balcony is 1 inch wide and 1.75 inches long . if the actual length of the balcony is 7 feet which of the following is the perimeter of the balcony

Answer 1

The perimeter of the balcony is 22ft.

Answer 2

The perimeter of the balcony is 22 feet.

Explanation:

On blue print , length of balcony is 1.75 inches

The actual length of balcony = 7 feet.

So, 1.75 inches = 7 feet

1 inch =
`(7)/(1.75)`

1 inch = 4 feet

Thus the scale is 1 inch = 4 feet.

On the blue print , the width of the balcony is 1 inch .

So, using scale the actual width = 4 feet

Now the formula of perimeter of rectangle =
`2(l+w)`

l =length

w = width

So, the perimeter of the balcony =
`2(7+4)`

=
`2*11`

=
`22`

Hence the perimeter of the balcony is 22 feet.