If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Circumference of parts of circles

You might need: Calculator

Problem

Find the arc length of the partial circle.
Either enter an exact answer in terms of pi or use 3, point, 14 for pi and enter your answer as a decimal.
units
Stuck?
Stuck?