Circumference of a circle from the radius

The math skill explains how to calculate the circumference of a circle using the formula \(2 \pi \times \text{radius}\). It also demonstrates converting the result from terms of \(\pi\) to a decimal approximation using \(\pi \approx 3.14\).

Skill Practice

Circumference of a circle from the radius

Test your understanding of circumference of a circle from the radius by practicing it! Work through the below exercises to use it in practice.