The question is incomplete, complete question is given below.
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 what is the perimeter of the balcony?
Answer:
The perimeter of the balcony is 22 feet.
Step-by-step explanation:
Given,
Actual length = 7 feet
Solution,
In the blue print , length of balcony is 1.75 inches.
The actual length of balcony = 7 feet.
Here we use the unitary method to find out the actual measurement.
[tex]\since\ 1.75\ inches = 7\ feet\\\therefore1\ inch = \frac{7}{1.75} = 4\ feet[/tex]
Thus the scale is 1 inch = 4 feet.
On the blue print , the width of the balcony is 1 inch .
So, the actual width = 4 feet
Now,
[tex]Perimeter\ of\ rectangle =2(length+width)[/tex]
On substituting the values, we get;
So, the perimeter of the balcony =[tex]2(7+4)[/tex]
=[tex]2\times11[/tex]
=[tex]22\ feet[/tex]
Thus the perimeter of the balcony is 22 feet.
