Warm-Up Complementary or Supplementary? B

Slides:



Advertisements
Similar presentations
Chapter 3 Lines and Angles. Chapter 3: Lines and Angles Essential Questions: What are the characteristics of parallel and perpendicular lines that can.
Advertisements

Finding angles with algebraic expressions
2.6 – Proving Statements about Angles Definition: Theorem A true statement that follows as a result of other true statements.
Angle Relationships.
Using Angle Relationships
Calculating Angles.
Angles Relationships Unit 7 Math 7.
Triangle Angle Sum. Properties of triangles Triangles have three sides and three angles Triangles are named according to their vertices The sum of the.
Warm Up Given: ∠ 1 ≅ ∠ 2 m ∠ 2 = 60° m ∠ 3 = 60° Prove: ∠ 1 ≅ ∠
Chapter 2.7 Notes: Prove Angle Pair Relationships
Chapter 2.7 Notes: Prove Angle Pair Relationships Goal: You will use properties of special pairs of angles.
Proving Angle Relationships
2.6 Proving Statements about Angles. Properties of Angle Congruence ReflexiveFor any angle, A
Geometry Section 1.6 Special Angle Pairs. Two angles are adjacent angles if Two angles are vertical angles if.
Triangles and Lines – Sum of the Angles in a Triangle The sum of the angles in any triangle = 180°
10-3 Angle Relationships G2:Properties of 2- dimensional figures.
Three Types of Special Angles
Section 2 – WARM UP Use your graphing calculator to find the answers to the following trig. values or angle measurements. 1. sin θ = sec θ =
Determining Angle Measures of Intersecting Lines CC.7.G.5 Use facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem.
Chapter Two: Reasoning and Proof Section 2-5: Proving Angles Congruent.
1. Write a proof of the alternate exterior angles theorem.
Objective-To find missing angles using rules of geometry. Supplementary Angles- Angles whose sum is 180. a b.
The answers to the review are below. Alternate Exterior Angles Postulate Linear Pair Theorem BiconditionalConclusion Corresponding Angles Postulate 4 Supplementary.
EXAMPLE 1 Identify congruent angles SOLUTION By the Corresponding Angles Postulate, m 5 = 120°. Using the Vertical Angles Congruence Theorem, m 4 = 120°.
Finding Angle Measures with Equations
Complementary and Supplementary Angles. Objective: Learn to find Complementary and Supplementary Angles.
2-4 Special Pairs of Angles. A) Terms 1) Complementary angles – a) Two angles whose sum is 90° b) The angles do not have to be adjacent. c) Each angle.
Geometry 8 th Grade Algebraic Angles Essential Questions How can I use the special angle relationships – supplementary, complementary, vertical, and.
Vertical AnglesSupplementary Angles Adjacent Angles.
Angles Review. Right Angle Discuss with your neighbor the definition of a right angle. How would you solve the below missing measure? 42 
Congruent Angles.
- Foldable (you will use this for HW Quiz)
Unit 1 Test RETAKES on TUESDAY!
Seventh Grade Geometry Unit 5
Adjacent, Vertical, Complimentary and Supplementary Angles
Complementary and Supplementary Angles.
Angle Relationships & Parallel Lines
Chapter 13.1.
Unit 1 Review.
Proof and Perpendicular Lines
Daily warm-up.
1.6 Describing Pairs of Angles
7-3 Similar Triangles.
Angle Relationships.
Chapter 5 Lesson 1: LINES.
Chapter 4 Section 1.
Objective-To find missing angles using rules of geometry.
Lesson 4 Lines & Angles Vertical Angles.
2.6 Proving Statements about Angles
 
Proving things about Angles
Writing Equations to Find Missing Angles
Parallel Lines and Transversals
2.6 Proving Statements about Angles
Special Pairs of Angles
Parallel Lines and Transversals
Warm-Up Compare and Contrast ∠
Chapter 2, lesson 5: A Simple proof
Complementary and Supplementary Angles.
Lesson 1-5 Pairs of Angles.
Angle Relationships & Parallel Lines
2.6 Deductive Reasoning GEOMETRY.
3.2 – Use Parallel Lines and Transversals
Goal: The learner will use properties of special pairs of angles.
Vertical Angles, Linear Pairs, Exterior Angles
Writing Equations to Find Missing Angles
Proving Statements about Angles
Unit 4A – Geometric Figures Complementary and Supplementary Angles
Proving Angle Pair Relationships
Warm-Up Define: Straight Angle Complementary Angles
Presentation transcript:

Warm-Up Complementary or Supplementary? B Write out the angle addition postulate using the names of these angles. Find X Find the measure of both angles. A B C D

Section Name: Vertical Angles Theorem Find the missing angle measures. State your reasoning. 47° Section Name: Vertical Angles Theorem

Vertical Angle Theorem

Use it with Algebra! X X X X

Use it with Algebra! X Y X Y

What is the measure of all three angles within a triangle? Use this piece of information to set up an equation and solve for x.

Set up an equation and solve for x. 46°

Solve for x.

Find all angle measures of Q, R, and S. Exit Ticket: Solve for x. Find all angle measures of Q, R, and S. Q R S

Independent Problem Complementary or Supplementary? Write out the angle addition postulate using the names of these angles. Find X Find the measure of both angles. A B C D