'Vertical angle theorem' presentation slideshows

CCSS in Secondary Mathematics: Changing Expectations

CCSS in Secondary Mathematics: Changing Expectations. Patrick Callahan Co-Director California Mathematics Project. Plan for this morning. Changing expectations for Algebra Do some algebra! Changing expectations for Geometry Do some geometry!.

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bell ringer 3-29-17

bell ringer 3-29-17. 1. What do you know about triangles ? How many degrees? Types? 2 . What do you know about parallel lines? Their slopes ? 2. What do you know about perpendicular lines? Their slopes?. angles & Lines. Wednesday, March 29, 2017. angles.

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Welcome Back! Collected Warm Up

Welcome Back! Collected Warm Up. Write your name What was your favorite thing you did over break? Think back on all the topics we covered this semester. What topic was most challenging? What topic was most interesting?. Tentative Schedule for End of Semester.

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One More Week Until Your Unit Test!!!

One More Week Until Your Unit Test!!!. Pick up notes from the front table Take out your homework from last night and a red pen . Take out your whiteboard and whiteboard marker. Start writing down the learning objective : SWBAT write paragraph proofs.

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GEOMETRY CHAPTER 2 JOURNAL

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Triangle Congruence

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Chapter 4 : Similar Triangles

Chapter 4 : Similar Triangles. Informally, similar triangles can be thought of as having the same shape but different sizes. If you had a picture of a triangle and you enlarged it, the result would be similar to the original triangle. Here is the precise definition(Fig.4.1).

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Objectives: Identify the properties of adjacent angles.

2.5 Adjacent & Vertical Angles. Objectives: Identify the properties of adjacent angles. Recognize congruency between vertical angles. Warm-Up:

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Bellringer

Bellringer. Your mission: Construct a perfect square using the construction techniques you have learned from Unit 1. You may NOT measure any lengths with your ruler. You may NOT measure any angles

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10/26 Bell Ringer

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Objectives: Prove and apply theorems about angles

Section 2-5: Proving Angles Congruent SPI 32E: solve problems involving complementary, supplementary, congruent, vertical or adjacent angles given angle measures expressed algebraically. Objectives: Prove and apply theorems about angles.

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Lesson 2-8

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2.8 Vertical Angle Theorem

2.8 Vertical Angle Theorem. Opposite Rays. Def: Opposite rays are two collinear rays that have a common endpoint and extend in opposite directions. C. A. A. B. B. but not. C. Vertical Angles.

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EXAMPLE 1

Write a congruence statement for the triangles. Identify all pairs of congruent corresponding parts. The diagram indicates that. JKL TSR. Corresponding angles. J T , ? K S , L R. Corresponding sides. JK TS , KL SR , LJ RT. EXAMPLE 1.

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EXAMPLE 1

Write a congruence statement for the triangles. Identify all pairs of congruent corresponding parts. The diagram indicates that. JKL TSR. Corresponding angles. J T , ? K S , L R. Corresponding sides. JK TS , KL SR , LJ RT. EXAMPLE 1.

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Answers to Evens

Answers to Evens. 2) Definition of Bisector 4) Angle Addition Postulate 6) Midpoint Theorem 8) Segment Addition Postulate 10) 75 12) c) 90 14) RSZ = 18, NSZ = 54. 2-4 Special Pairs of Angles. Answers to Warm Ups 1) Midpoint Theorem 2) Angle Add. Post. 3) Angle Bisector Def.

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Warm Up

Week 4. Warm Up. 11.07.11. Tell whether each statement is needed to show congruence:. 1) The figures must have the same size. 2) The figures must be polygons. 3) The figures must have the same shape. Postulate 19. R. N. S. P. M. Q. ?. ?. ?. ?MNP ? ?QRS because of SSS. Ex 1.

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The triangles are congruent.

The triangles are congruent. BGH. PKN. The triangles are congruent. CMD. XTG. G. ASA. Vertical Angle Theorem. ASA. ACD. ADC. AC. AAS. Given. <CAD is congruent to <BAC. Alternate interior angles. Reflexive. AAS.

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Measuring Angles

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