The perimeter of the rectangle is 216 cm; the second side is 5 times larger than the first, find the area of the rectangle.
March 25, 2021 | education
| 1) First, let’s find the lengths of the sides of the rectangle. To do this, write an equation where we represent its width as x, and its length as 5x.
(x + 5x) * 2 = 216;
6x * 2 = 216;
6x = 216/2;
6x = 108;
x = 108/6;
x = 18.
The rectangle is 18 centimeters wide.
2) Calculate the length of the rectangle.
18 * 5 = 90.
The rectangle is 90 centimeters long.
3) Let us find its area using the obtained data on the length of its sides.
90 * 18 = 1620.
Answer: The area of a rectangle is 1620 square centimeters.
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