The diameter of the circle is 10 cm. What is half the circumference of a circle?

univerkov | April 19, 2021 | education

Recall and write down the finding of the formula for the circumference:

C = 2 * pi * r = pi * d;

Substitute the diameter value in the formula and find the circumference, where pi = 3.14:

C = pi * 10 = 3.14 * 10 = 31.4 cm;

now we express half the circumference, i.e. divided by 2:

C / 2 = 15.7 cm.

Answer: C / 2 = 15.7 cm.

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