The meaning of circumference is to find the distance around a circle or in other words the perimeter of the circle. The circumference of a circle can be calculate by using the formula C=2πr or C=πd.
In this exercise is given that a circle has a diameter of 8.4 centimeters, and it is asked to find its circumference in terms of pi. In this problem the diameter of the circle is given, so in this case the formula C=πd would be used, where d represents the diameter.
C=πd C=8.4π cm
The circumference of the circle in terms of pi is 8.4π cm or 26.39 cm.
