1.4 Measuring Angles 1.5 Exploring Angle Pairs.

Slides:

Advertisements

Similar presentations

Construction in Geometry

Advertisements

“Geometry will be important to you later in life because there’s going to be a test six weeks from now.”

DO NOW Sketch each figure. CD GH AB Line m Acute ABC XY II ST.

Warm Up 1. Find CD Find the coordinate of the midpoint of CD. –2.

constructions Construct an Angle of 60° constructions  Draw a straight line of any length and on it mark a point X.  Centre X, any radius, draw an.

Angle Bisectors Adam J. Flick Sarah A. Porter. Congruent Angles- two angles with the same measure Example ◦Given:Angle 1 is congruent to angle 2 measure.

Section 1-5: Constructions SPI 32A: Identify properties of plane figures TPI 42A: Construct bisectors of angles and line segments Objective: Use a compass.

Bisecting Segments and Angles

Basic Geometric Constructions By: Mr. Erlin Geometry 1 Tamalpais High School.

1-2: Measuring & Constructing Segments. RULER POSTULATE  The points on a line can be put into a one-to-one correspondence with the real numbers.  Those.

Entry Task 1. Graph A (–2, 3) and B (1, 0). 2. Find CD. Write expression for it.

1 Objectives: 1. Measure segments. 2. Calculate with measures. 1-2 Linear Measure and Precision.

Copy a segment Copy an angle

Bisect an Angle links: file:///Users/dboarman/Deskto p/Bisect%20an%20angle/bise ctangle.html file:///Users/dboarman/Deskto p/Bisect%20an%20angle/bise ctangle.html.

Constructions. Supplies Paper (thick stack) Compass Straight Edge.

Warm-up 3.1 Constructions and 4.1 Triangle Sum Theorem

3.1 Duplicating Segments and Angles

1.6 Basic Constructions.

Copying Segments and Angles Adapted from Walch Education.

In Chapter 1, you studied many common geometric shapes and learned ways to describe a shape using its attributes. In this chapter, you will further investigate.

Creating Constructions Unit 7. Word Splash Constructions Construction – creating shapes using a straight edge and a compass Straight edge – clear,

Success Criteria: I can use special geometric tools to make a figure that is congruent to an original figure without measuring I can apply this method.

CHAPTER 1: Tools of Geometry

1.7 Basic Constructions.

 TEKS Focus:  (5)(B) Construct congruent segments, congruent angles, a segment bisector, an angle bisector, perpendicular lines, the perpendicular bisector.

Construction Angle Bisectors and Parallel Lines Angle Bisector Parallel lines and properties.

Warm-Up What is the converse of the Corresponding Angles Postulate?

3.3: Parallel and Perpendicular Lines

Chapter 1: Tools of Geometry

Lesson 1.7 – Basic Constructions “MapQuest really needs to start their directions on #5. Pretty sure I know how to get out of my neighborhood”

Constructing Perpendicular Bisectors and Lines Right angles Cut in Half.

Unit 1 All About Angles and Constructions (not necessarily in that order) Ms. Houghton Geometry Honors Fall 2014.

Lesson 10-1: Constructions 1 Lesson 10-1 Constructions.

GEOMETRY HELP Use the method learned for constructing congruent angles. Step 2: With the same compass setting, put the compass point on point N. Draw an.

3.4 Constructing Angle Bisectors Objectives: I CAN discover methods of constructing an angle bisector. I CAN explore how to construct special angles by.

10.1 Construction Modern construction: Use a modern compass, you can maintain the radius as you pick up the compass and move it. Euclidean construction:

Basic Geometric Constructions

+ Geometric Constructions 8 Basic Geometric Constructions.

Mechanical Drawing Lesson 5 Geometric Construction Created By Kristi Mixon.

LEARNING TARGETS:  I will be able to construct congruent angles. VOCBAULARY Compass and Straightedge.

Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane Section 3 Copying and Bisecting Angles Objectives: Students will be introduced to.

5.3.2: Introduction Segments and angles are often described with measurements. Segments have lengths that can be measured with a ruler. Angles have measures.

Constructions Bisect – To divide something into two equal parts Perpendicular – Lines that intersect to form right angles. Today’s constructions: –Bisect.

{ Constructions Duplicating and Line and an Angle.

Slide 1-1 Copyright © 2014 Pearson Education, Inc. 1.6 Constructions Involving Lines and Angles.

Construct TW congruent to KM.

Lesson 10-1: Constructions

Construction Angle Bisectors and Parallel Lines

1.6 Basic Constructions SOL: G4 Objectives: The Student Will …

Chapter 5.1 Segment and Angle Bisectors

Constructing Bisectors

Warm up Find the midpoint of segment AB A(0,0) B(6,4)

Geometric Constructions

Constructing Perpendicular Bisectors and Lines

What is a protractor and why is it used?

Duplicating Segments and Anlges

Construct an Octagon Inside of a Circle

Day 36 – Copying and bisecting a line segment and an angle

Compass Constructions

Lesson 10-1: Constructions

Lesson: 10 – 4 Inscribed Angles

Constructing Parallel Lines

Basic Constructions Skill 06.

1.6 and 3.6 Constructions By Brit Caswell.

Warm Up March 13, 2014 If I do well on the test, then I studied. 1. Give the inverse of the conditional statement. 2. Give the contrapositive of the conditional.

Basic Constructions.

Constructions with scale and compass.

Presentation transcript:

1.4 Measuring Angles 1.5 Exploring Angle Pairs

Construction – Copy and Angle 1.Draw an angle on your paper. Label the angle P. Use a ruler to draw a ray on your paper. Label its endpoint T. 2.Place the tip of the compass at point P and draw a large arc that intersects both sides of  P. Label the points of the intersection Q and R. 3.Using the same compass setting, put the compass at T and draw a large arc that intersects the ray. Label the point of intersection S. 4.Place the point of your compass on R and adjust so that the pencil tip is on Q. 5.Using the setting, place the compass at S and draw an arc to intersect the larger arc you drew in Step 3. Label the point of intersection U. 6.Use a ruler to draw ray TU

Construction – Bisect an Angle 1.Draw an angle on your paper. Label the vertex as A. Put your compass at a point A and draw a large arc that intersects both sides of  A. Label the points of intersection B and C. 2.With the compass at point B, draw an arc in the interior of the angle. 3.Using the same setting, place the compass at point C and draw an arc that intersects the arc drawn in step 2. 4.Label the point of intersection D. Draw AD.

C B A D E

Homework Pg 32 # 7 – 23 odd, 24 – 40, 41 – 43 Pg 38 # 7 – 25 odd, 27 – 47, 48 – 50