Calculate the approximate length of a circle if its radius is 11 cm.
| March 4, 2021 | education
Calculate the approximate length of the circle, if you know:
Radius = 11 cm;
pi = 3.14.
Decision:
To find the circumference of a circle, use the following formula.
C = 2 * pi * r, where C is the circumference.
Substitute the known values and calculate the circumference.
We get:
C = 2 * 3.14 * 11 cm = 2 * 11 * 3.14 cm = 22 * 3.14 cm = 69.08 cm = 69 cm;
As a result, we got that the circumference is C = 69 cm.
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