The lengths of the two sides of the rectangle are 5: 12, and its perimeter is 204. Find the sides of the rectangle
August 7, 2021 | education
| Since the sum of all the sides of this rectangle is 204 cm, and the sides are related as AB: BC = 5:12, we will compose the equation as follows:
5x – AB side;
12x – aircraft side;
5x + 12x + 5x + 12x = 204;
34x = 204;
x = 204/34 = 6;
AB = 5 ∙ 6 = 30 cm;
BC = 12 ∙ 6 = 72 cm.
Answer: the sides are 30 cm and 72 cm.
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