Download presentation

1
Section 9-2 Tangents

2
Theorem 9-1 If a line is tangent to a circle, then the line is perpendicular to the radius drawn to the point of tangency.

3
Point of Tangency

4
Corollary Tangents to a circle from a common point are congruent A P B

5
Theorem 9-2 If a line in the plane of a circle is perpendicular to the radius at its outer endpoint, then the line is tangent to the circle.

6
Tangent line

7
When each side of a polygon is tangent to a circle, the polygon is said to be circumscribed about the circle and the circle is inscribed in the polygon.

8
Common tangent A line that is tangent to each of two coplanar circles

9
**Common internal tangent**

Intersects the segment joining the centers A B

10
**Common external tangent**

Does not intersect the segment joining the centers. A B

11
Tangent circles Coplanar circles that are tangent to the same line at the same point

12
Externally Tangent l A B

13
Internally Tangent l C D

Similar presentations

OK

Copyright © Cengage Learning. All rights reserved. Circles 6 6 Chapter.

Copyright © Cengage Learning. All rights reserved. Circles 6 6 Chapter.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To ensure the functioning of the site, we use **cookies**. We share information about your activities on the site with our partners and Google partners: social networks and companies engaged in advertising and web analytics. For more information, see the Privacy Policy and Google Privacy & Terms.
Your consent to our cookies if you continue to use this website.

Ads by Google

Ppt on embedded c programming Ppt on memory management in os Ppt on importance of english communication skills Ppt on eye osmosis Mba ppt on job satisfaction Ppt on digital video editing Download ppt on civil disobedience movement in india Ppt on social networking in our lives Ppt on earthquake resistant design of structures Ppt on dot net framework