Geometry is the study of shapes, They studied Geometry in Ancient Mesopotamia & Ancient Egypt Geometry is important in the art and construction fields
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| Photo by Sergey Zolkin on Unsplash |
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.
RAY
- A RAY is part of a line, but it has one endpoint and the other end keeps going.
ENDPOINT
- An ENDPOINT is a point at the end of a ray or line segment.
LINE SEGMENT
- A LINE SEGMENT is part of a ray or line.
- It has two 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”
CONGRUENT
- CONGRUENT means the “same”
- CONGRUENT LINE SEGMENTS means two line segments are the same
- CONGRUENT Vertex/Angles means two angles are the same
VERTICAL LINE
- A VERTICAL LINE goes up & down
HORIZONTAL LINE
- A HORIZONTAL LINE goes “across” (left and right)
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.
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
> All this terms motioned with examples in the following presentation ppt format
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