What’s Your Angle?.

Slides:

Advertisements

Similar presentations

Chapter 5: Plane Geometry

Advertisements

Lines, Segments, and Rays. Line  A line is perfectly straight and extends forever in both directions. Any two points on the line can be used to name.

Warm Up #2 (3/12/09) Complete each sentence. 1. Angles whose measures have a sum of 90° are _______________. 2. Vertical angles have equal measures, so.

Parallel Lines & Transversals

What’s Your Angle? By Kim Davis. Background Vocabulary Plane: an infinite, flat surface. Parallel lines: lines in a plane that never meet. l l is the.

Geometric Terms 7 Math: Sections 7-1 and 7-2. Lines and Planes Point - indicates a location in space. Line - A series of points that extend forever in.

Pre-Algebra 5.2 Parallel and Perpendicular Lines.

Pre-Algebra 5-2 Parallel and Perpendicular Lines 5-2 Parallel and Perpendicular Lines Pre-Algebra Warm Up Warm Up Problem of the Day Problem of the Day.

Lesson 9.2 Angle Relationships and Parallel Lines

The building blocks of geometry

10.1 Points, Lines, Planes and Angles

PARALLEL LINES and TRANSVERSALS.

GEOMETRY PRE-UNIT 4 VOCABULARY REVIEW ALL ABOUT ANGLES.

Hosted by Mrs. Smyth 1pt 2pt 4pt 3pt 4pt LinesAnglesMore LinesAngles Too 3pt 2pt 4pt 2pt 1pt 5pt 1pt.

Unit # 1 Vocabulary Review 1. coordinate plane 2.

5-2 Parallel and Perpendicular Lines Warm Up Warm Up Lesson Presentation Lesson Presentation Problem of the Day Problem of the Day Lesson Quizzes Lesson.

Line and Angle Relationships

Line and Angle Relationships Sec 6.1 GOALS: To learn vocabulary To identify angles and relationships of angles formed by tow parallel lines cut by a transversal.

Angle Relationships Common Necessary Vocabulary for Parallel and Intersecting Lines.

- is a flat surface that extends in all directions. Objective - To identify angles as vertical, adjacent, complementary and supplementary. Plane.

Geometry Vocabulary Introduction to Classifying Angles.

Geometry Vocabulary Point an exact location in space Line A straight path that goes on forever in both directions A and B are any 2 points on the line.

Points, Lines, Planes and Angles. Points, Lines and Planes These basic concepts of geometry are theoretical and cannot be precisely defined. They do not.

Angle Relationships.

Slide 1 Copyright © 2015, 2011, 2008 Pearson Education, Inc. Lines and Angles Section9.1.

7-2 Parallel and Perpendicular Lines Warm Up Complete each sentence. 1. Angles whose measures have a sum of 90° are _______________. 2. Vertical angles.

Angle Relationships Lesson 54Power Up KPage 367. Angle Relationships Adjacent angles: share a common vertex and side, but don’t over lap. Vertical (opposite)

Course 3 Points, Lines, Planes, and Angles The measures of angles that fit together to form a straight line, such as FKG, GKH, and HKJ, add to 180°.

Geometry. Definitions Geometry Definitions 1.straight angle - 180º.

What’s Your Angle? An Introduction to Angle Pair Relationships.

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

ANGLE RELATIONSHIPS Mrs. Insalaca 8 th Grade Math.

Parallel Lines Cut by Transversal Created by Mrs. Bentley.

What’s Your Angle?.

Section 9.1 Points, Lines, Planes, and Angles

5-2 Parallel and Perpendicular Lines Warm Up Problem of the Day

5-2 Parallel and Perpendicular Lines Warm Up Problem of the Day

Angles and Parallel Lines

Geometry Basic Terms Unit 1 Vocabulary.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Parallel Lines & Transversals

Objective: To recognize and classify angles and

Angle Relationships & Parallel Lines

Angles and Lines.

Topic 1-5 Angle Relationships.

What’s Your Angle?.

Angle Relationships.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Parallel Lines & Transversals

Parallel Lines & Transversals

Parallel Lines and Transversals

Parallel Lines & Transversals

Section 9.1 Points, Lines, Planes, and Angles

Insert Lesson Title Here

Angles and Parallel Lines

NAMING GEOMETRIC FIGURES

Angles on Lines and Figures Vocabulary

Chapter 2 : Angles Vocabulary Terms.

Exploring Angles and Angle Relationships

Parallel Lines & Transversals

TRANSVERSAL VOCABULARY

Angles and Parallel Lines

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Warmup! Use the figure at right to: 1. Name the set of parallel lines.

Point An exact position or location in a given plane.

Parallel Lines & Transversals

Parallel Lines & Transversals

5-2 Parallel and Perpendicular Lines Warm Up Problem of the Day

Transversal: A line that intersects two coplanar lines

Presentation transcript:

What’s Your Angle?

Background Vocabulary Plane: an infinite, flat surface. Parallel lines: lines in a plane that never meet. l l is the symbol for parallel lines. Transversals: lines that intersect two or more parallel lines.

More Vocabulary Congruent angles: two angles that have equal measures. Ray: part of a line that has an endpoint and extends forever. Angles: two rays with a common endpoint.

Types of Angles Acute : angles that measure less that 90°.

Right: angles that measure 90°.

Obtuse: angles that measure more than 90° and less than 180°

Straight: angles that measure 180°.

Complementary Angle Two angles whose measure add up to 90°. 45° 45°

Supplementary Angles Two angles whose measures add up to 180°. 90° 90°

intersects two parallel lines, eight angles are formed. Congruent Angles When a transversal intersects two parallel lines, eight angles are formed.

1. 2. 3. 4. 5. 6. 7. 8.

Alternate Interior Angles 1. 2. 3. 4. 5. 6. 7. 8. Angle 3 and Angle 6 are congruent angles. This means they have the same measure.

Alternate Interior Angles 1. 2. 3. 4. 5. 6. 7. 8. Angle 4 and Angle 5 are congruent angles.

NOTE Alternate Interior Angles are on “alternate” sides and on the “interior” of the parallel lines.

Vertical Angles Angle 1 and Angle 4 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 1 and Angle 4 are congruent angles.

Vertical Angles Angle 2 and Angle 3 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 2 and Angle 3 are congruent angles.

Vertical Angles Angle 5 and Angle 8 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 5 and Angle 8 are congruent angles.

Vertical Angles Angle 6 and Angle 7 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 6 and Angle 7 are congruent angles.

NOTE Vertical Angles are diagonally across from each other.

Corresponding Angles Angle 1 and Angle 5 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 1 and Angle 5 are congruent angles.

Corresponding Angles Angle 2 and Angle 6 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 2 and Angle 6 are congruent angles.

Corresponding Angles Angle 3 and Angle 7 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 3 and Angle 7 are congruent angles.

Corresponding Angles Angle 4 and Angle 8 are congruent angles. 1. 2. 3. 4. 5. 6. 7. 8. Angle 4 and Angle 8 are congruent angles.

Demonstrate Your Knowledge Now that you’ve seen what is congruent, you can take the measurement of “1” angle and figure out the others. Let’s try it!

WHY?? Angle 2 measures 110°. What do the other angles measure? 1. 2. 3. 4. 5. 6. 7. 8. WHY??