Download presentation

1
**Apply Other Angle Relationships in Circles**

Lesson 10-5 Apply Other Angle Relationships in Circles

2
**Angles Inside the Circle Theorem (Interior Angle Theorem)**

Definition: Angles that are formed by two intersecting chords. 1 A B C D 2 E Interior Angle Theorem: The measure of the angle formed by the two intersecting chords is equal to ½ the sum of the measures of the intercepted arcs.

3
**Example: Interior Angle Theorem**

91 A C x° y° B D 85

4
Practice: 1) 2)

5
Exterior Angles An angle formed by two secants, two tangents, or a secant and a tangent drawn from a point outside the circle. 3 y x 2 1 Two secants 2 tangents A secant and a tangent

6
**Angles Outside the Circle Theorem (Exterior Angle Theorem)**

The measure of the angle formed is equal to ½ the difference of the intercepted arcs.

7
**Example: Exterior Angle Theorem**

8
Q G F D E C 1 2 3 4 5 6 A 30° 25° 100°

9
Practice: 1) 2)

10
**An Angle Formed by a Chord and a Tangent**

If a tangent and a chord intersect at a point on a circle, then the measure of each angle formed is one half the measure of its intercepted arc.

11
Practice: 1) 2)

Similar presentations

Presentation is loading. Please wait....

OK

Secants, Tangents, and Angle Measures

Secants, Tangents, and Angle Measures

© 2018 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on death penalty in india Ppt on body language training Ppt on soil moisture sensor Slides for ppt on android Ppt on 5 pen pc technology free download Ppt on product advertising letter Ppt on supply chain management of nokia cell Ppt on any one mathematician lovelace Ppt on water scarcity in the united Ppt on human chromosomes chart