The length of the rectangle is three times its width. Find the sides of a rectangle if its area is 108cm2
| February 7, 2021 | education
Let the width of the rectangle be X cm, then its length is 3 * X cm.
The area of a rectangle is equal to the product of its length and width.
Spr = X * 3 * X = 3 * X ^ 2.
3 * X ^ 2 = 108.
X ^ 2 = 108/3 = 36.
X = 6 cm.
The width is 6 cm, the length is 3 * 6 = 18 cm.
Answer: The sides of the rectangle are 6 cm and 18 cm.
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