Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Find a center of circle given a point and radius

  1. Feb 3, 2012 #1
    Hi all,

    How do I find the center of a circle given a point (tangent to the circle) and the radius.

  2. jcsd
  3. Feb 3, 2012 #2
    What does that mean? Any point on a tangent or the point of contact of tangent and circle?
  4. Feb 3, 2012 #3
    This problem does not have a single solution, instead, the solution of where the center of the circle could be is a circle in itself; in other words, the locus of the solution is a circle with center at the point given.
  5. Feb 3, 2012 #4


    User Avatar
    Gold Member
    2016 Award

    A point cannot be tangent to a circle, so it's not clear what you are talking about
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook