'Angle theorem' diaporamas de présentation

Congruent Triangles

Congruent Triangles. Geometry Chapter 4. This Slideshow was developed to accompany the textbook Larson Geometry By Larson , R., Boswell, L., Kanold , T. D., & Stiff, L. 2011 Holt McDougal Some examples and diagrams are taken from the textbook. Slides created by

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Concepts, Theorems and Postulates that can be use to prove that triangles are congruent .

Concepts, Theorems and Postulates that can be use to prove that triangles are congruent. Learning Target. I can identify and use reflexive, symmetric and transitive property in proving two triangles are congruent. I can use theorems about line and angles in my proof.

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Lesson 3-1

Triangle Fundamentals. Lesson 3-1. Polygon. Polygon - closed figure, in a plane (2-D), made of segments intersecting only at their endpoints. EX). NOT EX). Triangles. 3. Triangle - sided polygon- ABC. Vertices-. Sides of a -. A. A B C. AB BC AC. B. C. B. C. A.

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Use Inscribed Angles and Polygons

Use Inscribed Angles and Polygons. Wednesday, September 17, 2014. How do we use inscribed angles of circles?. Lesson 6.4. M2 Unit 3: Day 4. Find the value of x in C . Explain. 1. ANSWER.

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Lesson 3-1

Triangle Fundamentals. Lesson 3-1. B. C. A. Naming Triangles. Triangles are named by using its vertices. For example, we can call the following triangle:. ?ABC. ?ACB. ?BAC. ?BCA. ?CAB. ?CBA. Opposite Sides and Angles. Opposite Sides:. Side opposite to ? A :.

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Geometry

Today: Class Attendance / Announcements Return / Review Chapter 3 Tests 4.1 Notes / Break / 4.2 Notes Exit Slip Begin Homework. Be not afraid of going slowly; be afraid only of standing still. Chinese Proverb. Geometry. 4.1/4.2 Triangles and Angles. Objectives: Classify triangles

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Geometry Unit 4

Geometry Unit 4. Emily Eastman. How to classify triangles. By angle Acute- three acute angles Equiangular- Three cong. Angs . Right- right ang. Obtuse- obtuse ang. By side Equilateral- Three congruent sides Isosceles- At least two congruent sides Scalene- No congruent sides.

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Lesson 3-1

Triangle Fundamentals. Lesson 3-1. B. C. A. Naming Triangles. Triangles are named by using its vertices. For example, we can call the following triangle:. ?ABC. ?ACB. ?BAC. ?BCA. ?CAB. ?CBA. Opposite Sides and Angles. Opposite Sides:. Side opposite to ? A :.

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Lesson 4-1

Triangle Fundamentals. Lesson 4-1. B. C. A. Naming Triangles. A triangle is named by using its vertices. For example, we can call the following triangle:. ?ABC. ?ACB. ?BAC. ?BCA. ?CAB. ?CBA. Opposite Sides and Angles. Opposite Sides:. Side opposite to ? A :.

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6-1: Congruent Figures, Classifying Triangles, and Related Theorems

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Conditions for Parallelograms

Conditions for Parallelograms. Students will be able to show that a given quadrilateral is a parallelogram. Characteristics or Conditions. In the last section we learned five characteristics of a parallelogram. We use these when we already know the figure is a parallelogram.

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Honors Geometry Section 4.1 Congruent Polygons

Honors Geometry Section 4.1 Congruent Polygons. To name a polygon, start at any vertex and go around the figure, either clockwise or counterclockwise , and name the vertices in order. Example 1: Give two ( out of 12) possible names for the hexagon at the right. MEDSNO.

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Congruent Polygons

Q. B. X. Y. A. C. R. P. Congruent Polygons. Have congruent corresponding parts. When naming congruent polygons, always list corresponding vertices in the same order. A X B C P Y Q R. 3 rd Angle Theorem.

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Warm Up

Warm Up. Please draw the diagram. S tate the given and what you want to prove. Your Turn To Present!. With your Row, you will present 4.3 20 minutes to read over 4.3 Come up with a plan on how you want to present the material PowerPoint Song/Dance Poster Paper

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?Chapter 4 Review? Congruent Triangles

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x = 75 Simplify.

1 2. x = ( 80 + 70 ) Substitute. 1 2. x = mDEF Inscribed Angle Theorem. 1 2. x = ( mDE + mEF ) Arc Addition Postulate. Because EFG is the intercepted arc of D , you need to find mFG in order to find mEFG. Inscribed Angles. LESSON 12-3. Additional Examples.

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One-Step Proofs C hoose a reason from the bank and use it to write and justify the next statement.

One-Step Proofs C hoose a reason from the bank and use it to write and justify the next statement. JK = MN ____ JK ? MN _______ ____Def. of ? segments ____ 2. m ?PQR = m ?STU __________________ ________________________ 3. N is between M and O.

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