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Basic Geometric ElementsPoint
Line
Line segment
Ray
Parallel lines
Intersecting lines
Perpendicular
Angles
Vertex
Sides
Geometry
PointAn exact location in space
LineAn endless collection of points along a straight path
Line segmentPart of a line that has two endpoints
.A
Geometry
Ray
Part of a line that has one endpoint and extends endlessly in the other direction.
.
Geometry
Parallel LinesLines do not intersect but are in the same plane
Intersecting LinesLines meet at one point
Perpendicular LinesLines form a right angle
Angles
An angle is formed when two rays have the same endpoint.
This endpoint is called the vertex.
The two rays that form the angle are called sides.
Angles
There are four types of anglesRight angle
Straight angle
Acute angle
Obtuse angle
Right Angles
Forms a square corner
Forms a 90 degree angle.
90 degrees
Straight Angle
Forms a straight line
Angle is 180 degrees
180 degrees
Acute Angles
Forms an angle that is less than a right angle
Angle is less than 90 degrees
Obtuse Angles
Form an angle that is more than a right angle
Angle is more than 90 degrees
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