Calculate the radius of the circle if the circumference is 9.42cm.

We know well from the school curriculum that in order to calculate the length of a circle, we will need to use the following formula:

2πR – where R is, in fact, its radius.

Let’s take the number π for further calculations equal to 3.14.

Let us find out what value the radius of the indicated circle will equal if from the condition of our problem we know for sure that its length is 9.42 centimeters:

9.42: (2 * 3.14) = 9.42: 6.28 = 1.5.

Answer: Under such conditions, the radius of the circle is 1.5 cm.