Find the length of a circle if its radius is 12 cm.
| June 16, 2021 | education
In the problem statement, the radius of the circle is set and it is equal to R = 12 cm. To find the circumference of the circle, you need to know the value of the constant – the number n = 3.14.
Find the length of the given circle.
To find the circumference of a circle, we will use the following formula.
l = 2пR, where R is the radius of the circle, and we remembered the value of the number n above.
Substitute the known values into the formula and calculate the circumference:
l = 2 * 3.14 * 12 = 24 * 3.14 = 75.36 cm.
The length of a circle with a radius of R = 12 cm is equal to 75.36 cm.
Answer: circumference 75.36 cm.
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