One of the sides of the rectangle is 18 cm, and P = 80 cm. Find the sides of this rectangle.
| December 26, 2020 | education
the perimeter of the rectangle is 2 * (a + b) and is equal to 80. side a is given to us – 18 cm. then: 2 * (18 + b) = 80, 18 + b = 40, b = 40-18 = 22
Answer: the sides of the rectangle are 18 and 22 cm
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