The lengths of the two sides of the rectangle are 5: 12, and its perimeter is 204. Find the sides of the rectangle

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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