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An architect builds a model of a park in the shape of a rectangle. The model is 40.64 centimeters long and 66.04 centimeters wide. One inch equals 2.54 centimeters.

Use the ratio table to find the ratio of the length to the sum of the length and width in inches and in simplest form.

Length: 40.64 cm
Width: 66.04 cm

A. 8:21
B. 13:21
C. 21:13
D. 21:8

Answer :

For a rectangle model of park, the ratio of length of rectangle model to the sum of the length and width in inches is equals to the 8:21. So, option(A) is right one.

We have an architect builds a model of a park in the shape of a rectangle. The dimensions are defined as

The length of rectangle model of park

= 40.64 centimeters

Width of rectangle model = 66.04 cm

There is one inch equals to the 2.54 centimeters. We have to determine the ratio of the length to the sum of the length and width in inches. Using the unit conversion, one inch = 2.54 centimeters

=> 1 cm = 1/2.54 inches

So, length of model in inches = [tex] \frac{1}{2.54} × 40.64 [/tex] = 16 inches

Width of rectangle model in inches = [tex] \frac{1}{2.54} ×66.04[/tex] = 26 inches

Now, the sum of length and width inches = 16 + 26 = 42 inches

The ratio of length to the sum of length and width in inches = 16 : 42

=> [tex] \frac{16}{42}[/tex]

= [tex] \frac{8}{21}[/tex]

Hence, required value is 8:21.

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