Exploring Geometry Vocabulary with Mr. Fiore & Mr. Ryan

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Geometry Vocabulary
 
Mr. Fiore
&
Mr. Ryan
 
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”.
The Hershey Kiss is a POINT on the line
 
 
LINE
 
A LINE goes in opposite directions and
never, never, never ends.
 
 
Imagine if this Twizzler went on forever and ever and ever and ever and ever and ever
 
RAY
 
A RAY is part of a line, but it has one
endpoint and the other end keeps going.
 
 
Endpoint
 
Raaaaaaaaaaaaaaaaaaaaaaaayyyyyyyyyyyyyyyyyyyyyyyyyyy
 
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 two endpoints
 
 
 
Line
Segment
 
Line
 
Line
 
Ray
 
 
Endpoints
 
VERTEX
 
A VERTEX is a fancy name for “angle”
Two rays or lines that have the same
endpoint make a VERTEX/angle
VERTEX/angles are measured in
“degrees”
 
The Corners of a
square are its
vertex/angles
 
When two
lines cross,
they make
vertex/angles
 
CONGRUENT
 
CONGRUENT means the “same”
CONGRUENT LINE SEGMENTS means
two line segments are the same
CONGRUENT Vertex/Angles means two
angles are the same
 
 
 
 
 
The Hershey & Crunch Bar are a Congruent size
 
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
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.
 
OPEN & CLOSED FIGURES
 
A CLOSED FIGURE/SHAPE starts and
ends at the same point.
An OPEN FIGURE/SHAPE does NOT
start and end at the same point.
 
CLOSED
 
OPEN
 
 
 
 
Start
 
End
 
Start
 
End
 
POLYGON
 
A POLYGON is a “closed” shape
A POLYGON is made up of line segments
that do not cross.
The number of sides gives a POLYGON
its name
 
POLYGON
 
NOT POLYGON
 
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
 
RIGHT ANGLES measure exactly 90 
°
 
The
“square”
symbol
means 90’
 
4 TYPES OF ANGLES
 
OBTUES ANGLES are greater than 90 
°
but less than 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 the label
 
A
 
B
 
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)
 
The End
 
Once you study all the “fancy words”,
Geometry is very easy to understand…so
STUDY!
 
This powerpoint was kindly donated to
www.worldofteaching.com
 
 
 
 
http://www.worldofteaching.com
 is home to over a
thousand powerpoints submitted by teachers. This is a
completely free site and requires no registration. Please
visit and I hope it will help in your teaching.
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Geometry, the study of shapes, has its roots in Ancient Mesopotamia and Ancient Egypt. Concepts such as point, line, ray, endpoint, line segment, vertex, congruent, vertical line, horizontal line, and plane are essential in understanding geometric relationships and structures. This visual guide provides a playful and informative tour through these fundamental geometrical terms.


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  1. Geometry Vocabulary Mr. Fiore & Mr. Ryan

  2. 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

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

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

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

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

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

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

  9. CONGRUENT CONGRUENT means the same CONGRUENT LINE SEGMENTS means two line segments are the same CONGRUENT Vertex/Angles means two angles are the same The Hershey & Crunch Bar are a Congruent size

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

  11. HORIZONTAL LINE A HORIZONTAL LINE goes across (left and right) The candy bars are Horizontal

  12. 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.

  13. OPEN & CLOSED FIGURES A CLOSED FIGURE/SHAPE starts and ends at the same point. An OPEN FIGURE/SHAPE does NOT start and end at the same point. CLOSED OPEN Start Start End End

  14. POLYGON A POLYGON is a closed shape A POLYGON is made up of line segments that do not cross. The number of sides gives a POLYGON its name NOT POLYGON POLYGON

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

  16. 4 TYPES OF ANGLES ACUTE ANGLES are less than 90

  17. 4 TYPES OF ANGLES RIGHT ANGLES measure exactly 90 The square symbol means 90

  18. 4 TYPES OF ANGLES OBTUES ANGLES are greater than 90 but less than 180

  19. 4 TYPES OF ANGLES STRAIGHT ANGLE is exactly 180

  20. 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)

  21. The End Once you study all the fancy words , Geometry is very easy to understand so STUDY!

  22. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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