Find the length of the circle if its radius is 4.5 cm.
| June 25, 2021 | education
It is known that the circumference (or perimeter of a circle) (P) is determined by the formula:
P = 2πr, where π is the number of pi – a constant equal to 3.14; r is the radius of the circle.
Let’s calculate the circumference, knowing that its radius is 4.5 cm:
P = 2 * 3.14 * 4.5 = 28.26 cm.
Answer: the length of the given circumference is 28.26 cm.
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