Rules for Dealing with Chords, Secants, Tangents in Circles

If two chords intersect in a circle, the product of the lengths of the segments of one chord equal the product of the segments of the other . Ex. 1: Finding Segment Lengths ... external part equals the square of the length of the tangent segment . Example: In the figure if AD cm and AC cm Find x9 , 25 . . x D B C A 9 cm ................
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