Find the area of a rectangle if the perimeter is 60 cm, and the ratio of adjacent sides is 4:11.
July 30, 2021 | education|
First you need to determine how many centimeters are the sum of the adjacent sides.
To do this, divide the specified perimeter into 2 parts.
60/2 = 30 cm.
Since the sides are related as 4:11, then the sum of equal parts will be equal to:
4 + 11 = 15.
In this case, the length of the first side will be:
4/15 * 30 = 4 * 2 = 8 cm.
The length of the second side will be:
11/15 * 30 = 2 * 11 = 22 cm.
The area of the rectangle is the product of two adjacent sides and in this case is:
8 * 22 = 176 cm2
Answer: 176 cm2
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