What is one of the sides of a rectangle if its perimeter is 56 cm, and the other side is 13 cm?
| April 28, 2021 | education
To solve this problem, let’s use the perimeter formula: Р = 2 * a + 2 * b, where “a” and “b” are the length and width of the rectangle, respectively. Substituting our data, we get: 56 = 2 * 13 + 2 * b; 56 = 26 + 2 * b; 30 = 2 * b; b = 30/2; b = 15. Thus, one of the sides of the rectangle is 15 cm.
Answer: 15 cm is the unknown side of the rectangle.
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