1.4: Pairs of Angles.

Slides:

Advertisements

Similar presentations

2-5 Proving Angles Congruent

Advertisements

Angles (def) An ACUTE ANGLE is an angle w/ a MEASURE less than 90° (def) A Right angle is an angle w/ a MEASURE = 90° (def) An Obtuse angle is an angle.

Section 1.6 Pairs of Angles

1.5 Describe Angle Pair Relationships

Angle Relationships Section 1-5 Adjacent angles Angles in the same plane that have a common vertex and a common side, but no common interior points.

SPECIAL PAIRS OF ANGLES. Congruent Angles: Two angles that have equal measures.

1.5: Describe Angle Pair Relationships 1.6: Classify Polygons Objectives: 1.To use special angle relationships to find angle measures 2.To define, name,

Geometry Section 1.5 Describe Angle Pair Relationships.

UNIT 01 – LESSON 06 – ANGLE RELATIONSHIPS Essential Question How can you describe angle pair relationships and use thee descriptions to find angle measures?

Angles Acute angle (def)- angle measure less than 90° Right angle (def)- angle measure= 90° Obtuse angle (def)- angle measure greater than 90° Straight.

 Vertical angles – are not adjacent, and their sides are formed by two intersecting lines  1 and 3 are vertical angles  2 and 4 are vertical angles.

9-17 Honors Geometry Warm-up Complete #1-6 on the 1-4 Enrichment page in packet.

GEOMETRY Section 1.5: Angle Relationships. Adjacent angles - two angles that lie in the same plane and have a common vertex and common side, but no common.

1.4 Pairs of Angles Adjacent angles- two angles with a common vertex and common side. (Side by side) Linear pair- a pair of adjacent angles that make a.

1.5 Exploring Angle Pairs.

Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane

Section 1-6 Angle Pair Relationships. Vertical angles Formed when two lines intersect. Vertical Angles are Congruent. 1 2.

1.6 Angle Pair Relationships. Which angles are adjacent?

1-3 Pairs of Angles.

Angle Pair Relationships

Angle Relationship Sec 1.5 Sol: G.3 and G.11. Angle Relationship Sec 1.5 Sol: G.3 and G.11.

1-5 Angle Relationships Students will learn how to identify and use special pairs of angles, namely, supplementary, complementary, and congruent (have.

ANGLERELATIONSHIPS SECTION 1-5 and 2-8 Jim Smith JCHS Spi.3.2.E.

Geometry 3.4 adjacent angles and linear pairs. Adjacent Angles are angles that share a common side and have the same vertex, but have no interior points.

Pairs of Angles Geometry Farris O I can identify adjacent, vertical, complementary, and supplementary angles. I can find measures of pairs of angles.

Holt Geometry 1-4 Pairs of Angles 1-4 Pairs of Angles Holt Geometry Warm Up Warm Up Lesson Presentation Lesson Presentation Lesson Quiz Lesson Quiz.

GEOMETRY UNIT 3 VOCABULARY ALL ABOUT ANGLES. ANGLE DEFINITION Angle A figure formed by two rays with a common endpoint.

Measures and Relationships.  Ray – part of a line that includes one endpoint and extends infinitely in one direction  Opposite rays – rays that share.

1.6 Angle Pair Relationships. Adjacent Angles  Remember: Adjacent Angles share a vertex and a ray, but DO NOT share any interior points.

Combining Your Knowledge of Angles With Your Ability to Solve Equations You will have to write and solve equations to find values of variables related.

Angle Relationships Lesson 1.5.

Objective: To recognize and classify angles and

1.6 Angle Pair Relationships

Chapter 1 section 7 Angle relationships

Module 14: Lesson 1 Angles Formed by Intersecting Lines

Special pairs of angles

Angles #29 Acute angle (def)- angle less than 90° # 28 Right angle (def)- angle = 90° #30 Obtuse angle (def)- angle greater than 90° #31 Straight angle.

Angle Pairs More Angle Pairs Definitions Pictures Angles

1.5 Exploring Angle Pairs.

Chapter 1.5 Notes: Describe Angle Pair Relationships

I can write and solve equations to find unknown angle measures.

Sec. 1.5: Angle Pairs There are five special pairs of angles:

Module 14: Lesson 1 Angles Formed by Intersecting Lines

Section 1.5. Section Angle Pair Relationships Identify vertical angles and linear pairs. Identify complementary and supplementary angles.

1.6 Describing Pairs of Angles

Adjacent, Vertical, Supplementary, and Complementary Angles

Angle Relationships.

1.4: Pairs of Angles.

1.6 Angle Pair Relationships

Angle Pairs Module A1-Lesson 4

Angle Pair Relationships

Angles and Bisectors.

1-4 Pairs of Angles Warm Up Lesson Presentation Lesson Quiz

X = 6 ED = 10 DB = 10 EB = 20 Warm Up.

Obj. 6 Pairs of Angles Objectives: Identify linear pairs

Angle Pair Relationships

Notes 1.4 Pairs of Angles.

Lesson 3.1 Lines Cut By A Transversal

Exploring Angles and Angle Relationships

Describe Angle Pair Relations

Chapter 1 Basics of Geometry.

Exploring Angle Pairs Skill 05.

Adjacent Angles Definition Two coplanar angles with a common side, a common vertex, and no common interior points. Sketch.

1-5 : Angle Pair Relationships

1.6 Describing Pairs of Angles

Proving Angles Congruent

Identifying Angle Pair Relationships

Adjacent, Vertical, Supplementary, and Complementary Angles

Presentation transcript:

1.4: Pairs of Angles

Adjacent angles have -- 1) common vertex 2) common side 3) no common interior points

When two lines cross, the nonadjacent angles are vertical.

A linear pair is two adjacent angles whose noncommon sides are opposite rays.

Without using a protractor, determine each lettered angle measure.

Without using a protractor, determine each lettered angle measure.

Without using a protractor, find m<ABC.

The m<2 = 85o. Find the m<4

The m<3 = 110o. Find the m<4

The m<1 = (4x + 134)o and the m<4 = (4x + 30) o Solve for x.

The m<2 = (5x + 14)o and the m<4 = (2x + 26) o Find the m<4.

Find x.

Find x.

Find x.

<A and <B are supplementary. Find m<A. m<A = (4x + 12)o ; m<B = (2x + 6)o

Identify each angle pair as vertical angles, linear pair, just adjacent, or none of these. <1 and <2 <3 and <4 <2 and <5 <1 and <4 <3 and <5