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

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