Lines Segments and Rays What is Geometry Geometry

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Lines, Segments and Rays

Lines, Segments and Rays

What is Geometry? Geometry is the study of shapes They studied Geometry in Ancient

What is Geometry? Geometry is the study of shapes They studied Geometry in Ancient Mesopotamia & Ancient Egypt Geometry is important in the art and construction fields

POINT A POINT is an exact location on a graph, shape or in “space”.

POINT A POINT is an exact location on a graph, shape or in “space”. The Hershey Kiss is a POINT on the line ●

LINE A LINE goes in opposite directions and never, never ends. Imagine if this

LINE A LINE goes in opposite directions and never, never ends. Imagine if this Twizzler went on forever and ever and ever

RAY A RAY is part of a line, but it has one endpoint and

RAY A RAY is part of a line, but it has one endpoint and the other end keeps going. ● Raaaaaaaaaaaayyyyyyyyyyyyyy Endpoint

ENDPOINT An ENDPOINT is a point at the end of a ray or line

ENDPOINT An ENDPOINT is a point at the end of a ray or line segment. Endpoint

LINE SEGMENT A LINE SEGMENT is part of a ray or line. It has

LINE SEGMENT A LINE SEGMENT is part of a ray or line. It has two endpoints Line Segment Line ● ● Line ● Endpoints Ray

VERTEX A VERTEX is a fancy name for “angle” Two rays or lines that

VERTEX A VERTEX is a fancy name for “angle” Two rays or lines that have the same endpoint make a VERTEX/angles are measured in “degrees” When two lines cross, they make vertex/angles The Corners of a square its vertex/angles

VERTICAL LINE A VERTICAL LINE goes up & down The candy bars are vertical

VERTICAL LINE A VERTICAL LINE goes up & down The candy bars are vertical

HORIZONTAL LINE A HORIZONTAL LINE goes “across” (left and right) The candy bars are

HORIZONTAL LINE A HORIZONTAL LINE goes “across” (left and right) The candy bars are Horizontal

TYPES OF LINES 1. Parallel Lines 2. Perpendicular lines - Two lines that never

TYPES OF LINES 1. Parallel Lines 2. Perpendicular lines - Two lines that never intersect. - Two lines that intersect forming right angles.

PLANE § A PLANE (no, not the one that flies!) is a flat surface

PLANE § A PLANE (no, not the one that flies!) is a flat surface that goes on forever in all directions. § Imagine sitting on a row boat in the middle of the ocean. No matter which way you look…all you see is water…forever.

PROTRACTOR We use a PROTRACTOR to measure vertex/angles in degrees

PROTRACTOR We use a PROTRACTOR to measure vertex/angles in degrees

4 TYPES OF ANGLES ACUTE ANGLES are less than 90°

4 TYPES OF ANGLES ACUTE ANGLES are less than 90°

4 TYPES OF ANGLES RIGHT ANGLES measure exactly 90 ° The “square” symbol means

4 TYPES OF ANGLES RIGHT ANGLES measure exactly 90 ° The “square” symbol means 90’

4 TYPES OF ANGLES OBTUES ANGLES are greater than 90 ° but less than

4 TYPES OF ANGLES OBTUES ANGLES are greater than 90 ° but less than 180 °

4 TYPES OF ANGLES STRAIGHT ANGLE is exactly 180 °

4 TYPES OF ANGLES STRAIGHT ANGLE is exactly 180 °

ANGLES When you “name” an angle. The vertex/angle “letter/number” goes in the center of

ANGLES When you “name” an angle. The vertex/angle “letter/number” goes in the center of the label B A C If I wanted to know the measurement of Angle A…I would ask: ” What is the measurement for BAC? ” (Notice A is in the center)

Find one acute, one obtuse, and one straight angle. G F H K J

Find one acute, one obtuse, and one straight angle. G F H K J

Intersecting Planes

Intersecting Planes

The End Once you study all the “fancy words”, Geometry is very easy to

The End Once you study all the “fancy words”, Geometry is very easy to understand…so STUDY!

Lines Line Segments and Rays Lines Line SegmentsLines Line Segments and Rays Lines Line Segments
CLIENT SEGMENTS CLIENT SEGMENTS CLIENT SEGMENTS CLIENT SEGMENTSCLIENT SEGMENTS CLIENT SEGMENTS CLIENT SEGMENTS CLIENT SEGMENTS
Segments Rays Parallel Lines and Planes Identifying SegmentsSegments Rays Parallel Lines and Planes Identifying Segments
Geometry 1 3 Segments Rays and Distance LinesGeometry 1 3 Segments Rays and Distance Lines
Geometry Jeopardy Review Game Polygons Lines Segments RaysGeometry Jeopardy Review Game Polygons Lines Segments Rays
Cosmic Rays History of Cosmic Rays Cosmic raysCosmic Rays History of Cosmic Rays Cosmic rays
Name ALL lines and segments Name all raysName ALL lines and segments Name all rays
I can Name points lines rays and segmentsI can Name points lines rays and segments
Sec 1 4 Segments Rays Parallel Lines andSec 1 4 Segments Rays Parallel Lines and
Section 1 4 Segments Rays Parallel Lines andSection 1 4 Segments Rays Parallel Lines and
Lines Segments Rays and Angles What is aLines Segments Rays and Angles What is a
1 3 Segments Rays Parallel Lines and Planes1 3 Segments Rays Parallel Lines and Planes
Lines Line Segments Rays and Angles Press theLines Line Segments Rays and Angles Press the
Name Points Line Segments Rays Lines and PlanesName Points Line Segments Rays Lines and Planes
Lines Rays Line Segments Make two arrows thatsLines Rays Line Segments Make two arrows thats
Lines Segments Rays Points R K 4 GLines Segments Rays Points R K 4 G
GEOMETRY Angles and Parallel Lines Intersecting Lines LinesGEOMETRY Angles and Parallel Lines Intersecting Lines Lines
Lines and Angles Geometry PARALLEL LINES Two linesLines and Angles Geometry PARALLEL LINES Two lines
Geometry 1 3 Segments Rays and Distance ReviewGeometry 1 3 Segments Rays and Distance Review
Geometry 1 3 Segments Rays and Distance ReviewGeometry 1 3 Segments Rays and Distance Review