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10.6: Find Segment Lengths in Circles

10.6: Find Segment Lengths in Circles. 02/18/09. Segments of Secants Theorem

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10.6: Find Segment Lengths in Circles

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  1. 10.6: Find Segment Lengths in Circles 02/18/09

  2. Segments of Secants Theorem If two secant segments share the same endpoint outside a circle, then the product of the lengths of one secant segment and its external segment equals the product of the lengths of the other secant segment and its external segment. D B A E C

  3. Ex.1) Find the value of x. 6 9 5 x

  4. Segments of Secants and Tangents Theorem If a secant segment and a tangent segment share and endpoint outside a circle, then the product of the lengths of the secant segment and its external segment equals the square of the length of the tangent segment. B A C D

  5. Ex.2) Find the value of x. 3 1 x

  6. turn to pg. in your workbooks.

  7. HW #28: p.693 (6 – 12, 14, 15, 17 – 19) & p. 686 (1 – 7) *10.4, 10.5 Quiz this Friday. *Bring textbook tomorrow.

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