Jimbo's+9.5

Back to Jimbo's Chapter Nine Definition of terms Line XA forms a tangent segment. XB forms a secant segment, XC creates an external secant segment, and line BC is a chord.

Theorem if two segments are tangent to a circle from the same external point, then the segments

Theorem If two secants intersect out side a circle, the product of the lenghts of one secant segment and its external segment equals the product of the lengths of one secant segment and its external segmant. (whole x Outside = Whole x Outside)

Theorem If a secant and a tangent intersect outside a circle, then the product of the lenghts of one secant segmentand its external segment equals the lenght of the tangent squared. (Whole x outside = Tangent Squared)

Theorem If two chords intersect inside a circle, then the product of the lenghts of the segments of one chord equals the product of the lengths of the segments of the other chord.