Find the length of a circle with a radius of 5 cm.

univerkov | March 4, 2021 | education

The circumference of a circle is equal to twice the product of the radius of this circle and the number Pi (the number Pi is an infinite fraction that has existed for a long time, but scientists still continue to calculate its digits after the decimal point; in school practice, it is customary to round the number Pi to 3.14, but in some cases in the problem, for convenience, it is indicated how to round off the number Pi).
2 * 5 * 3.14 = 31.4.
Thus, the circumference is 31.4 cm.

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