Find the circumference of a circle if its radius is 5.25 dm.
| August 8, 2021 | education
The radius of the circle is known from the condition and it is equal to R = 5.25 dm. The value of the constant is pi = 3.14.
We need to find the length of a given circle.
In order to find the circumference of a circle, we will use the following formula.
l = 2пR, where R is the radius of the circle, and the number pi is given to us in the condition.
Substitute the known values into the formula and calculate the circumference:
l = 2 * 3.14 * 5.25 = 10.5 * 3.14 = 32.97 dm.
So, the circumference with a radius of R = 5.25 dm is equal to 32.97 dm.
Answer: the circumference is 32.97 dm.
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