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Geometry
Geometry - Chapter 12 vocab
20
Other
Undergraduate 2
09/10/2007

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Term
Plane
Definition
An infinatly flat surface extending in every direction
Term
Htpothenous
Definition
The longest side of a right triangle
Term
Collinear Points
Definition
Points that lie on the same line

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Term
Acute Triangles
Definition
An angle measuring less than 90 degrees.
Term
Concurrent Lines
Definition
Three or more lines that contain the same point
Term
Obtuse Triangle
Definition
A triangle that has a angle greater than 180 degrees
Term
Parrelle Lines
Definition
Two lines that will never touch
Term
median of a triangle
Definition
A segment from a vertex to the midpoint of the opposite side.
Term
Skew Line
Definition
Lines in three demintial space do not intercect if they are not parelle
Term
Alltitude of a triangle
Definition
The perpendicular segment from a vertex to the line containing the opposite side.
Term
Points
Definition
A location on a plane
Term
Angle
Definition
A figure formed by two rays that have the same endpoint. The two rays are called the sides of the angle. Their common endpoint is the vertex.
Term
Vertex
Definition
The angle is the union of two segments with a common endpoint
Term
Accute Angle
Definition
An angle with measure between 0 and 90 degrees
Term
Right Triangle
Definition
an angle equaling 90 degrees
Term
Obtuse Angle
Definition
An angle measuring over 90 degrees
Term
Straight Angle
Definition
an angle measuring 180 degrees
Term
Reflex Angle
Definition
An angle greater than 180 degrees
Term
Adjacent Angles
Definition
2 nonstraight and nonzero angles that have a common side in the interior of the angle formed by the noncommon sides
Term
Verticle Angles
Definition
They are oppisite from each other and are formed by interceting lines
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