According to the condition of this problem, it is required to determine the perimeter of the rectangle. In the condition, we are given the length of this rectangle – 45 centimeters, and we also know that its width is 2/3 of the length.
To determine the numerical value of the width of the rectangle, we must multiply the length by the fraction 2/3, or, more simply, divide 45 by 3 and multiply the result by 2. The formula for calculating the perimeter of this rectangle will be:
(45 + (45/3) * 2) * 2 = (45 + 15 * 2) * 2 = (45 + 30) * 2 = 75 * 2 = 150 cm;
Answer: The perimeter of the given rectangle is 150 cm.
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