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

Write standard equation of a circle

You might need: Calculator


A circle has a radius of 37 units and is centered at (1.3,3.5).
Write the equation of this circle.