The length of the rectangle is 19 dm, and the width is 7 cm shorter. What is its perimeter?
| April 27, 2021 | education
The length of the rectangle is a = 19 dm = 190 cm (since 1 dm = 10 cm).
The width of the rectangle b is 7 cm shorter than the length, therefore, b = 190 cm – 7 cm = 183 cm.
The perimeter of the rectangle is found by the formula: P = (a + b) * 2.
Substitute the values into the formula: P = (190 cm + 183 cm) * 2 = 746 cm.
Answer: the perimeter of the rectangle is 746 cm.
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