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The rectangular floor of a classroom is 33 feet in length and 24 feet in width. A scale drawing

of the floor has a length of 11 inches. What is the area, in square inches, of the floor in the
scale drawing?

User Bolino
by
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1 Answer

1 vote

Answer:

Area = 88 in.^2

Explanation:

Determine the scale of the drawing:

Since the floor's actual length is 33 ft and the scale drawing floor's length is 11 in., we can determine the scale of the entire painting by simplifying:

Rule = 33 ft / 11 in.

Rule = 3 ft / 1 in.

Thus, 3 ft in the real world represent 1 in. on the scale.

Determine the width of the floor's scale drawing:

Sine we now know that 3 ft real world represents 1 in. on the scale and we already know the floor's actual width (24 ft), we can determine the width of the floor on the scale in inches using a proportion:

3 ft / 1 in. = 24 ft / x in.

(3 = 24/x) * x

(3x = 24) / 3

x = 8

Thus, the floor's width on the scale is 8 in.

Find the area of the floor in the scale drawing:

The formula for the area of rectangle is given by:

A = lw, where

  • A is the area in square units,
  • l is the length,
  • and w is the width.

Now we can substitute 11 for l and 8 for w to find the area of the drawing in the scale in square inches:

A = 11 * 8

A = 88

Thus, the area of the floor in the scale in square inches is 88 in.^2.

User Korin
by
8.5k points

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