1-4 Measuring Segments and Angles part 1

Slides:

Advertisements

Similar presentations

Geometry Section 1.3 Measuring Lengths

Advertisements

Warm Up Find the values of y by substituting x = 2, 3, y = 3x-1 2. y = 4(x+3) 3. y = 8(x+4) + x(8+x)

Geometry Mrs. King Unit 1, Lesson 4

1-2 Linear Measure Textbook page 13. Review: Measuring with a ruler Find the length of using each ruler. cm in.

1.1 Exit Ticket: Part 1 Answers

Index Card Let’s start our stack of Theorems, Postulates, Formulas, and Properties that you will be able to bring into a quiz or test. Whenever I want.

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.

Goal 1. To be able to use bisectors to find angle measures and segment lengths.

Objectives: 1) Find the lengths of segments 2) Find the measures of angles 1-4 Measuring Segments & Angles M11.B.2 M11.C B B.

Unit 01 – Lesson 03 – Distance & Length

Section 1-4 Measuring Angles and Segments. _______________________ What is the measure of segment DC? What is the measure of segment DE? What is the measure.

Chapter 1Section 2 - Ruler Postulate1 Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane Section 2 Ruler Postulate Objectives: Students.

1-3 and 1-4 Measuring Segments and Angles. Postulate 1-5 Ruler Postulate The point of a line can be put into a one- to-one correspondence with the real.

DO NOW. Ruler Postulate The distance between any two points on the number line is the absolute value of the difference of their positions. AB = |a –

Ruler Postulate & Segment Addition Postulate Chapter

1-3: Measuring Segments. Today’s Objectives  Use The Ruler Postulate to calculate lengths of segments  Identify the midpoint of a segment, and apply.

1.3: Segments, Rays, and Distance

Warm-up Solve the following problems for x x – 5 = 2x 2.5x – 3 = 2x x – 7 = 4x - 3.

Unit 1 Part 3 Segment Addition & Distance and Midpoint Formulas.

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.

Do Now Draw and label a figure for each relationship:

Section 1.3 Segments and Their Measures. Coordinate The real number that corresponds to a point.

Lesson 1.5: Measuring Segments Lesson 1.6a: Measuring Angles

Chapter 1-2 (Segments and Congruence)

1.3 Measuring Segments and Angles. Postulate 1-5Ruler Postulate The distance between any two points is the absolute value of the difference of the corresponding.

Measuring Angles and Segments Section 1-4. Measuring Segments The distance between any two points on a horizontal or vertical line  ABSOLUTE VALUE OF.

Cover Slide Use Segments and Congruence. Between Segment Relationships and Rays Between L J K N K is between J and L.N is not between J and L. (Refer.

Section 1-4: Measuring Segments SPI 12A: Use absolute value to express distance between two points SPI 21B: Solve multi-step.

Measuring Segments and Angles During this lesson, you will use segment postulates to determine the lengths of segments.

1.5 Measuring Segments To Find the Lengths of Segments,

Honors Geometry Section 1.2 Measuring Lengths. Consider this number line. On a number line, the real number assigned to a point is called the _________.

Do Now 8/29/12 Name the intersection of each pair of planes or lines

Bellringer. 1.4 Measuring Segments and Angles Postulate 1-5 Ruler Postulate.

How to find the lengths of segments. Chapter 1.5GeometryStandard/Goal 2.2.

1-3 Segments, Rays, and Distance

Segments, Rays, and Distance

1-3 Measuring segments.

2.1 Segment Bisectors Goal:

Lesson 2 – 7 Proving Segment Relationships

definition of a midpoint

Distance and Midpoint Formulas

Measuring and Constructing Line Segments

Points, Lines, and Planes

1.1 SEGMENT ADDITION This stuff is AWESOME!.

2. Definition of congruent segments AB = CD 2.

Teacher Note When talking about the midpoint, mention that it BISECTS the line segment.

1.5 Segments & Their Measures

Congruent segments MIDPOINT OF A SEGMENT

4.4 The Equidistance Theorems

Chapter 1: Tools of Geometry

Day 3 Measuring Segments and Angles

1.2 Measuring and Constructing Segments

Line Segment A line segment consists of two points called endpoints of the segment and all the points between them. A D H.

Term Definition How to Name… Picture.

Find which two of the segments XY, ZY, and ZW are congruent.

1-2 Measuring & Constructing Segments

Use Segments and Congruence

Chapter 1 Exploring Geometry: Points, Lines, and Angles in the Plane

1-4 Measuring Segments (part 1).

The Distance and Midpoint Formulas

1.3 Segments, Rays, and Distance

1.2 Measuring and Constructing Segments

Section 1.4 Measuring Segments and Angles

Measuring and Constructing Segments

Unit 1 Foundations of Geometry Points, Lines and Planes

Lesson 1-2 Segments and Rays.

Measuring Segments Skill 03.

Use Segments and Congruence & Midpoints

Parallel, Parallel, Parallel ||

Presentation transcript:

1-4 Measuring Segments and Angles part 1 L.E.Q. How do you find the lengths of segments?

What does AB mean? AB without any symbol above it is a question. It is asking/telling you what the length of the segment with endpoints A and B is.

What are congruent segments? Segments that have the same length/measure.

In other words:

How do you know that 2 segments are congruent How do you know that 2 segments are congruent? What kind of proof would you need? They would have to have the same number of tic marks on them. There would have to be proof that their lengths are equal in measure.

Postulate 1-6, The Segment Addition Postulate. If 3 points A, B, and C are collinear and B is between A and C, then AB + BC = AC.

EXAMPLE: Using the segment addition postulate. If AB = 25, find the value of x. Then find AN and NB.

What is a midpoint? A point on a segment that is the same distance from both endpoints. The midpoint bisects the segment.

EXAMPLE: Using midpoint to find lengths. M is the midpoint of RT. Find RM, MT, and RT.

Hw: Pgs. 29-30 #s 2 – 14 even.