Download presentation

Presentation is loading. Please wait.

Published byAnnabelle Broadhurst Modified about 1 year ago

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 P B A

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 A B l

13
Internally Tangent C D l

Similar presentations

© 2016 SlidePlayer.com Inc.

All rights reserved.

Ads by Google