The sides of the rectangle are 4: 7, and its largest side is 31.5 cm. find the smaller side, perimeter and area of this rectangle.
1). Let’s calculate how many centimeters are in one part of the number of the larger side of the rectangle, in relation to the number of sides of the rectangle.
31.5 / 7 = 4.5 centimeters.
2). Find the smaller side of the rectangle.
4.5 * 4 = 18 centimeters.
3). Let’s define what the perimeter is.
(31.5 + 18) * 2 = 99 centimeters.
4). Find out what the area of the rectangle is.
31.5 * 18 = 567 cm2.
Answer: The smaller side of the rectangle is 18 centimeters, the perimeter of the rectangle is 99 centimeters, and the area is 567 cm2.
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