Lines, Line Segments, and Rays
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Lines, Line Lines, Line Segments, and Segments, and Rays Rays By Mr. Bales By Mr. Bales
description
Lines, Line Segments, and Rays. By Mr. Bales. Objective. By the end of the lesson, you will be able to identify, describe, and classify lines, line segments, and rays. Standard 4MG3.1 - Students will identify lines that are parallel and perpendicular. B. A. What in the World are Lines ?. - PowerPoint PPT Presentation
Transcript of Lines, Line Segments, and Rays
Lines, Line Lines, Line Segments, and Segments, and
RaysRays
By Mr. BalesBy Mr. Bales
ObjectiveObjective
• By the end of the lesson, you will By the end of the lesson, you will be able to be able to identify, describe, and identify, describe, and classify lines, line segments, and classify lines, line segments, and rays.rays.
• Standard 4MG3.1 - Standard 4MG3.1 - Students will Students will identify lines that are parallel and identify lines that are parallel and perpendicular.perpendicular.
What in the World are What in the World are LinesLines??• A A lineline is a group of points on a is a group of points on a
straight path that extends to infinity.straight path that extends to infinity.
• You would label this AB or BAYou would label this AB or BA
A
B
Thank you Andrew for Asking Thank you Andrew for Asking about about Line SegmentsLine Segments!!!!
• AA line segmentline segment is a part of a line that is a part of a line that has has two end pointstwo end points..
• How many end points Natalie?How many end points Natalie?
• The two end points of the line segment The two end points of the line segment
are used to name the line segment. This are used to name the line segment. This line segment is called segment XY or YX.line segment is called segment XY or YX.
X Y
Wow! Great Question Ty!! Wow! Great Question Ty!! He asked, “What are He asked, “What are
RaysRays??• A A rayray is part of a line. It has one end point is part of a line. It has one end point
and extends to infinity in one direction. and extends to infinity in one direction.
• A ray is named starting with its end point A ray is named starting with its end point first and then any other point on the ray first and then any other point on the ray second.second.
• So, it would be labeled CDSo, it would be labeled CD
C D
Pop QuizPop Quiz!!!! No Need to !!!! No Need to Thank Me! It’s My Pleasure!Thank Me! It’s My Pleasure!
• What is this called….What is this called….
• What is this called…What is this called…
• What is this called…What is this called…
A BCan you label it correctly?
X Y Can you label it correctly?
G HCan you label it correctly?
Types of LinesTypes of Lines
• We can describe lines, rays, and We can describe lines, rays, and line segments by the way they line segments by the way they meet or cross each other.meet or cross each other.
• Let’s hear from someone know as Let’s hear from someone know as they describe a couple of line they describe a couple of line segments.segments.
• Mrs. Benson!!
Parallel LinesParallel Lines
• Parallel linesParallel lines are always the same are always the same distance apart. They never meet.distance apart. They never meet.
• AB ll CDAB ll CD
A
BC
D
Intersecting LinesIntersecting Lines
• Lines that meet or cross each other are Lines that meet or cross each other are called called intersectingintersecting lineslines..
• AB intersects CDAB intersects CD
A
BC
D
Perpendicular LinesPerpendicular Lines
• Lines that meet or cross each other to form Lines that meet or cross each other to form right angles are called right angles are called perpendicular linesperpendicular lines..
• AB CDAB CD
A
DC
B
Bales Bucks!!!!!Bales Bucks!!!!!
AssignmentAssignment
• Page 396 - # 6 - 20Page 396 - # 6 - 20• Get them all correct, No Math Get them all correct, No Math
HomeworkHomework
