Question

An experienced ice skater spins on the ice, creating a perfect circle with a radius of 1 yard. What is the circle's circumference? Use 3.14 for ​.

Answer 1

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, where r refers to the radius.

In this exercise is given a circle, which radius is 1 yard and it is asked to find its circumference and use 3.14 as the value of pi. In order to do that, you should substitute the given value of the radius and pi into the formula C=2πr.


`C=2 \pi r`

`C=2(3.14)(1 yd)`

`C=6.28 yards`

The circumference of the circle is 6.28 yards.