Assignment #45 – Review for Week 10 Quiz

Slides:

Advertisements

Similar presentations

Identifying Congruent Triangles

Advertisements

Draw the following: 1. acute triangle 2.right triangle 3.obtuse triangle 4. acute, scalene triangle 5.obtuse, isosceles triangle 6. right, scalene.

TODAY IN GEOMETRY…  Review 4.1 concepts  Learning Goal: 4.2 Identify Congruent Triangles  Independent practice  Ch.4 QUIZ-Thursday/Friday.

Applying Triangle Sum Properties

ADVANCED GEOMETRY 3.6 Types of Triangles LEARNER OBJECTIVE: Students will classify triangles by sides and by angles and will complete problems and proofs.

Classifying Triangles Students will classify triangles using the lengths of the sides and the angles. S. Calahan October 2010.

Triangles 1 The Basics. 2 Naming Triangles For example, we can call the following triangle: Triangles are named by using its vertices. ∆ABC∆BAC ∆CAB∆CBA∆BCA.

Classify Triangles Standard 4C.

TRIANGLES (There are three sides to every story!).

Chapter 4 Congruent Triangles In this chapter, you will: classify triangles by their parts, apply the Angle Sum Theorem and the Exterior Angle Theorem,

2.7 – Triangles. Type of ∆DefinitionPicture Equilateral Triangle CLASSIFICATION BY SIDES All sides are ≅

Triangles & Congruence Advanced Geometry Triangle Congruence Lesson 1.

Chapter 4.1 Notes: Apply Triangle Sum Properties Goal: You will classify triangles and find measures of their angles.

4-1, 4-2: Classify Triangle & Angle Relationships

Warmup – grab a book Room , submit answers for x and y.

EQUILATERAL & ISOSCELES Quiz tomorrow. CLASSIFY the triangle by ANGLES and SIDES Angles: acute, obtuse, right Sides:equilateral, isosceles, scalene 91.

Triangles Part 1 The sum of the angles in a triangle is always equal to: 180°

Triangles and Angles Sec 4.1 GOALS: To classify triangles by their angles and sides To find missing angle measures in triangles.

4.1 & 4.2 A Notes. Type of ∆DefinitionPicture Equilateral Triangle CLASSIFICATION BY SIDES All sides are 

Triangle Classification. Objectives Classify triangles by their angle and side measures Find the sum of the measure of the interior and exterior angles.

Classify triangles by sides No congruent sides Scalene triangle At least two sides congruent Isosceles triangle Three congruent sides Equilateral triangle.

Goal, to classify triangles by their sides and by their angles.

4-1 Triangles and Angles. Theorem 4.1: Triangle Sum The sum of the measures of the interior angles of a triangle is 180 . xx yy zz  x +

Classifying Triangles How many degrees can be found in all triangles? 180 We can classify triangles 2 ways: By their angles By their sides.

Triangles and Angles Classifying Triangles. Triangle Classification by Sides Equilateral 3 congruent sides Isosceles 2 congruent sides Scalene No congruent.

3.7 Angle Side Theorems. Theorem 20: Isosceles Triangle Theorem (ITT) If 2 sides of a triangle are congruent, then the angles opposite the sides are congruent.

Classifying Triangles. Two Ways to Classify Triangles  By Their Sides  By Their Angles.

Lesson 8.3 Concept: How to classify triangles by their sides and angles. An equilateral triangle has three sides of the same length. An isosceles triangle.

Triangles The sum of the measures of the angles of a triangle is 180 degrees. m A + m B + m C = 180 o A BC An angle formed by a side and an extension.

Triangles Chapter What is the sum of the angles inside a triangle? 180º? Prove it m Given A B C Angle Addition Postulate/Definition of a Straight.

3-4 Angles of a Triangle. A Triangle is a figure formed by three segments joining three noncollinear points. 1) Classifying triangles by their sides.

5-1 Classifying Triangles

Warm Up 5-1 Classify each angle as acute, obtuse, or right

Mid Unit 5 Review 2-Dimensional Figures.

3.6 Types of Triangles Objective:

Isosceles and Equilateral Triangles

Jeopardy Triangle Edition. Please form groups of up to 4, take a seat with your group and decide on a group name.

Geometry 4.1 Triangle and Angles.

Mid Unit 5 Review 2-Dimensional Figures.

Proving Triangles Congruent

Proofs Geometry - Chapter 2

Section 3-4 Angles of a Triangle.

Triangles: Classifications, Angles and More

CLASSIFICATIONS, ANGLES AND MORE!!

Classifying Triangles

Congruent Triangles TEST REVIEW

4.1 Triangles and Angles.

Congruent Triangles 4-1: Classifying Triangles

Objectives -triangle names -remote interior -exterior

Classifying Triangles

Objective - To classify triangles.

Add up all the sides Perimeter of Area of a Rectangle: ANY polygon:

Lesson 5-1 Angles of Triangles.

Triangle Fundamentals

Isosceles/ Equilateral

Lesson 5-R Chapter 5 Review.

Classification of Triangles

3-3 Parallel Lines & the Triangle Angle Sum Theorem

4-1 Vocabulary Acute triangle Equiangular triangle Right triangle

Intro to Triangles.

4.1 – Apply triangle sum properties

5-7 Isosceles and Equilateral Triangles

Triangles and Angles.

Classifying Triangles

Warm Up 7.4 Is there enough information to prove that the triangles are congruent? If so, state the reason (SSS, SAS, HL, ASA,

4-1 Classifying Triangles

Lesson 4-R Chapter 4 Review.

Presentation transcript:

Assignment #45 – Review for Week 10 Quiz Determine if you can prove each pair of triangles congruent. If you can, state the appropriate theorem. (SSS, SAS, AAS, ASA, HL). Classify each triangle by sides and length. (Sides: isosceles, equilateral, scalene) (Angles: equiangular, acute, right, obtuse) Find the missing angle. 13. 6. 7. 12. 1. 2. 3. 4. Using the isosceles triangle below, solve for x. Then, find the measure of side AC. 8) AB = 2x + 1 BC= x – 4 9) AB = 7x -5 BC = 8x +4 14. Define: Isosceles triangle Equilateral triangle Triangle Angle Sum Theorem Exterior Angle Theorem Right Triangle Scalene Triangle CPCTC Third Angle Theorem AAS ASA Solve for x. Then, find the measure of angle A. 10. 5) A jeweler creates triangular medallions by bending pieces of silver wire. Each medallion is an isosceles triangle. Two sides of a triangle is 3 cm long. And the shortest side is 1 cm long. How many medallions can be made from a piece of wire that is 77 cm long? 11.

Complete each proof below: 15. Given: Prove: 17. Given: are right angles. Prove: Statement Reason Statement Reason 16. Given: Prove: 18. Given: Prove: Statement Reason Statement Reason