The length of the rectangle is 2 times its width. The perimeter of this rectangle is 18 cm.
| May 10, 2021 | education
The length of the rectangle is 2 times its width. The perimeter of this rectangle is 18 cm. Find the lengths of the sides of this rectangle.
The length of the rectangle is – 2 times the width.
The perimeter of the rectangle is 18 cm.
Let’s define the sides of this rectangle. Let’s denote the unknown value by y. Let’s write the expression.
(2y + y) * 2 = 18.
3y = 18/2.
3y = 9.
Let us determine the unknown value of y.
Y = 9/3 = 3.
The width of the rectangle is 3 cm.
2y = 2 * 3 = 6 cm.
Therefore, the width of this rectangle is 6 centimeters.
Answer: the width is 6 centimeters, the length is 3 centimeters.
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