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Geometry Vocabulary
NA
39
Mathematics
7th Grade
01/31/2012

Additional Mathematics Flashcards

 


 

Cards

Term
Point
Definition
An exact location
Term
Plane
Definition
A flat surface that goes on forever
Term
Line
Definition
A straight path that extends forever in opposite directions
Term
Line Segment
Definition
Part of a line with two end points
Term
Ray
Definition
Has one end point and then goes on without end in one direction
Term
Parallel Lines
Definition
Lines that never cross and have no common points
Term
Perpendicular Lines
Definition
Lines that cross at a right angle
Term
Angle
Definition
Two rays with the same end point
Term
Vertex
Definition
Where the two rays of an angle meet.
Term
Acute Angle
Definition
An angle less than 90 degrees
Term
Obtuse Angle
Definition
An angle larger than 90 degrees
Term
Right Angle
Definition
An angle that is exactly 90 degrees
Term
Straight Angle
Definition
An angle that is 180 degrees or 0 degrees
Term
Polygon
Definition
Closed figure with no curves or intersecting lines
Term
Triangle
Definition
A polygon with 3 sides
Term
Quadrilateral
Definition
A polygon with 4 sides
Term
Pentagon
Definition
A polygon with 5 sides
Term
Hexagon
Definition
A polygon with 6 sides
Term
Heptagon
Definition
A polygon with 7 sides
Term
Octagon
Definition
A polygon with 8 sides
Term
Nonogon
Definition
A polygon with 9 sides
Term
Decagon
Definition
A polygon with 10 sides
Term
N-gon
Definition
A polygon with n sides
Term
Equiangular Polygon
Definition

[image]

 

Polygon with all equal angles

Term
Equilateral Polygon
Definition
Polygon with all equal sides
Term
Regular Polygon
Definition
Polygon with both equal sides and angles
Term
Diagonal
Definition
Connects two vertexes of a polygon through the polygon
Term
Supplementary Angles
Definition
Angles that add to 180
Term
Complementary Angles
Definition
Angles that add to 90
Term
Isosceles Triangle
Definition
A triangle with at least two equal sides
Term
Equilateral Triangle
Definition
A triangle with all equal sides
Term
Acute Triangle
Definition
A triangle with all acute angles
Term
Right Trianle
Definition
A triangle with one right angle
Term
Obtuse Triangle
Definition
A triangle with oneobtuse angle
Term
Parallelogram
Definition
A quadrilateral with two sets of parallel sides
Term
Trapezoid
Definition
A quadrilateral with exactly one set of parallel sides
Term
Rectangle
Definition
A quadrilateral with four right angles
Term
Rhombus
Definition
A quadrilateral with four equal sides
Term
Square
Definition
A quadrilateral with four equal sides and four right angles
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