The perimeter of the rectangle ABCD is 40 in. The length of the rectangle is 12 cm, find the width of the rectangle?

The perimeter of the rectangle ABCD is 40 decimeters.
The rectangle is 12 centimeters long.
Let’s convert decimeters to centimeters:
1 dm = 10 cm.
40 dm = 400 cm.
Find the sum of the lengths of the rectangle:
12 + 12 = 24 centimeters.
Let’s calculate what the two widths of the polygon are equal to:
400 – 24 = 376 centimeters.
Let’s calculate the value of one width:
376: 2 = 188 centimeters.
Answer: 188 centimeters.

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