# Math Help - Point on the circumference

1. ## Point on the circumference

Need to determine whether a point is lies on the circumference of a circle given the center of the circle(origin), the point (any value) and the radius (any value) I just need the fomula tnx in advance

2. Originally Posted by fenox52
Need to determine whether a point is lies on the circumference of a circle given the center of the circle(origin), the point (any value) and the radius (any value) I just need the fomula tnx in advance
Hint: the equation of a circle is given by

$(x - h)^2 + (y - k)^2 = r^2$

here, $(h,k)$ is the center and $r$ is the radius.

of course, $(x,y)$ is a point on the circle

3. Thanks I got it now