12-4 Angle Measures and Segment Lengths

Slides:

Advertisements

Similar presentations

Classifying Angles with Circles

Advertisements

11.2/11.3 Tangents, Secants, and Chords

OBJECTIVES: STUDENTS WILL BE ABLE TO… USE THE RELATIONSHIP BETWEEN A RADIUS AND A TANGENT USE THE RELATIONSHIP BETWEEN 2 TANGENTS FROM ONE POINT FIND THE.

Other Angle Relationships

Session 25 Warm-up 1.Name a segment tangent to circle A. 2.What is the 3.If BD = 36, find BC. 4.If AC = 10 and BD = 24, find AB. 5.If AD = 7 and BD = 24,

Geometry – Segments of Chords and Secants

Secants, Tangents, and Angle Measures

Rules for Dealing with Chords, Secants, Tangents in Circles

TODAY IN GEOMETRY…  Review: Finding inside and outside angles of circles  Warm up: Finding angles  Learning Target : 10.6 You will find lengths of segments.

10.4 Other Angles Relationships In Circles. Theorem A tangent and a chord intersect at a point, it makes angles that are ½ the intercepted arc.

SECANTS Secant - A line that intersects the circle at two points.

10.5 Segment Lengths in Circles

Sec. 12 – 4  Measures & Segment Lengths in Circles.

Other Angle Relationships in Circles

Section 10.5 Angles in Circles.

6.5 Other Angle Relationships in Circles. Theorem 6.13 If a tangent and a chord intersect at a point on the circle, then the measure of each angle formed.

Geometry Warm-Up4/5/11 1)Find x.2) Determine whether QR is a tangent.

11-4 Angle Measures and Segment Lengths Learning Target: I can find angle measures and segment lengths. Goal 2.03.

Section 9-7 Circles and Lengths of Segments. Theorem 9-11 When two chords intersect inside a circle, the product of the segments of one chord equals the.

Sec. 12 – 4  Measures & Segment Lengths in Circles Objectives: 1) To find the measures of  s formed by chords, secants, & tangents. 2) To find the lengths.

Unit 6-2 Lines that Intersect Circles. This photograph was taken 216 miles above Earth. From this altitude, it is easy to see the curvature of the horizon.

Segment Lengths in Circles 10.5 Chapter 10 Circles Section 10.5 Segment Lengths in Circles Find the lengths of segments of chords. Find the lengths of.

Angle Relationships in circles

Other Angle Relationships in Circles

Copyright © 2014 Pearson Education, Inc.

Rules for Dealing with Chords, Secants, Tangents in Circles

Circles Definitions.

Geometry Chapter 10 Section 6

10.5 Segment Lengths in Circles

10.6 Secants, Tangents, and Angle Measures

Section 10.5 Angles in Circles.

Lesson: Angle Measures and Segment Lengths in Circles

11.4 Angle Measures and Segment Lengths

Other Angle Relationships in Circles

Section 10.6 Segments in Circles.

Concentric and Tangent Circles

Angle Measures and Segment Lengths in Circles

15.5 Angle Relationships in Circles

Chapter 10.5 Notes: Apply Other Angle Relationships in Circles

10-6: Secants, Tangents, and Angle Measures

9-6 Other Angles.

Circles – Modules 15.5 Materials: Notes Textbook.

Segment Lengths in Circles

12.1: Lines that Intersect Circles

12.3: Inscribed Angles.

Secants, Tangents, and Angle Measure

Angles in Circle Notes Unit 5 Day 2.

10.5 Angle Relationships in Circles

Section 10.4 Other Angle Relationships in Circles

Segment Lengths in Circles

Unit 9 – Circles Acc. Alg/Geo A

Section 10.4 – Other Angle Relationships in Circles

Bell Ringer – Tuesday, May 5, 2015

Tangents to Circles.

Segment Lengths in Circles

Segment Lengths in Circles

Aim: How do we find the length of secants?

Notes 12.3/12.4 (Angles) Learning Targets:

Chapter 9 Section-6 Angles Other.

Segment Lengths in Circles

Unit 3: Circles & Spheres

Angle Measure & Segment Lengths

LESSON LESSON PART I ANGLE MEASURES

Secants, Tangents, and Angle Measures

Special Segments in a Circle

Segment Lengths in Circles

Special Segments in a Circle

Presentation transcript:

12-4 Angle Measures and Segment Lengths

Secant: A line, ray, or segment that intersects a circle at two points.

Problem 1: Finding Angle Measures What is the value of each variable:

What is the value of each variable:

Problem 2: Finding Arc Measure A satellite in a geostationary orbit above earth’s equator has a viewing angle of earth formed by the two tangents to the equator. The viewing angle is about 17.5˚. What is the measure of the arc of earth that is viewed from the satellite?

Problem 3: Finding Segment Length What is the value of each variable: