Power of a point P intersects the circle at A and B, the endpoints of the diameter. Their respective products of distances are equal to each other and to the power of point P in that circle This equality is sometimes known as the ""secant-tangent theorem"", ""intersecting chords theorem"", or the ""power-of-a-point theorem"". The power of a point is used in many geometrical definitions and proofs. For example, the radical axis of two given circles is the straight line consisting of points that have equal power to both circles. For each point on this line, there is a unique circle centered on that point
Will the Circle Be Unbroken: Volume Two of "Will the Circle Be Unbroken". Will the Circle Be Unbroken: Volume Two Will the Circle Be Unbroken: Volume Two (also "Circle II") is a 1989 album by the Nitty Gritty Dirt Band. The album follows the same concept as the band's 1972 album, "Will the Circle Be Unbroken", which featured guest performances from many notable country music stars. "Circle II" features largely acoustic, bluegrass music instrumentation with a line-up of contemporary country music artists that includes Johnny Cash, Rosanne Cash, Emmylou Harris, Michael Martin Murphey and Ricky Skaggs. Returnees from the first "Circle" are bluegrass musician Jimmy Martin, banjoist