The width of the rectangle is 3 cm what is its length if the perimeter is 12 cm.
| April 11, 2021 | education
To solve this problem, you need to know the formula for the perimeter of a rectangle. P = 2 * (a + b), where a is the width, b is the length, and P is the perimeter.
Let’s substitute the numbers from the problem statement into the formula:
12 = 2 * (3 + b).
12 = 6 + 2 * b.
6 = 2 * b.
b = 3.
Answer: The length of the rectangle is 3 cm.
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