1. Lesson: 10 – 7 Special Segments in Circles
Geometry
Lesson: 10 – 7
Special Segments in Circles
Objective:
Find the measure of segments that intersect in the interior of a circle.
Find measures of segments that intersect in the exterior of a circle.

2. Chord Segments
When two chords intersect it splits the chords into segments called chord segments.

3. Segments of Chords Theorem
Copy title & pic
Segments of Chords Theorem
If two chords intersect in a circle, then the products of the lengths of the chord segments are equal.

4. Use the intersection of Two Chords to find x.

5. Use the intersection of Two Chords to find x.
Copy
Use the intersection of Two Chords to find x.

6. The true shape of a rainbow is a complete circle
The true shape of a rainbow is a complete circle. However, we see only the arc of the circle that appears above the Earth’s horizon. What is the radius of the circle containing the arc of the rainbow.

7. Secant Segment External Secant Segments
Copy title & pic
Secant Segment
A segment of a secant that has exactly one endpoint on the circle.
External Secant Segments

8. Secant Segments Theorem
Copy title & pic
Secant Segments Theorem

9. Use the Intersection of Two secants to find x.

10. Theorem 10.17
Copy title & pic

11. Copy
Quadratic Formula
For ax2 + bx + c = 0, then

12. Copy
Get = to 0.

14. Homework
Pg – 20 E, 26, 36