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A floor plan has a 32 inches : 1 inch scale. On the drawing, one of the rooms measures 2 1/2 inches by 3 3/8 inches. Show answers to the nearest .01
The actual dimensions would be: _____ feet by: _____ feet.
The area of the room would be _____ square feet.


Sagot :

A scale drawing is a drawing of a real object with the actual sizes accurately enlarged or reduced by a given factor, known as the scale of the drawing

The correct values are:

The actual dimensions (of the room) would be: [tex]6\frac{2}{3}[/tex] feet by: 9 feet

The area of the room would be 60 square feet

The reason the above values are correct is as follows;

The given parameters are;

The scale of the floor plan is 32 inches : 1 inch, which reads;

32 inches in actual dimension is equivalent to 1 inch in the drawing

The dimensions of the room in the drawing is 2 1/2 inches by 3 3/8 inches

The number of decimal places of the answer is the nearest .01 inches:

Required:

The actual dimensions of the room in the question

Method:

The dimensions of the room is given by multiplying the given drawing dimensions by 32 inches, as follows;

Solution:

The actual dimensions of the room is given as follows;

[tex]Actual \ Room \ dimensions: \ 2\frac{1}{2} \ inches \times 32 \ by \ 3\frac{3}{8} \ inches \times 32[/tex]

Where;

[tex]2\frac{1}{2} = \dfrac{5}{2}[/tex], and  [tex]3\frac{3}{8} =\dfrac{27}{8}[/tex]

Which gives;

[tex]\dfrac{5}{2} \ inches \times 32 = 80 \ inches \ by \ \dfrac{27}{8} \times 32 = 108 \ inches[/tex]

However;

80 inches = [tex]6\frac{2}{3}[/tex] feet

108 inches = 9 feet

Therefore;

The actual dimensions (of the room) would be: [tex]6\frac{2}{3}[/tex] feet by: 9 feet

The area of the room, A = [tex]6\frac{2}{3}[/tex] feet × 9 feet = 60 square feet

Therefore;

The area of the room would be 60 square feet

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