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Math Geometry
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Gravity
Terms in this set (30)
Area
Number of square units that covers a closed figure (space within a figure)
Height
The perpendicular distance from opposite vertex to the base
Scalene Triangle
A triangle with no equal side lengths
Obtuse Triangle
A triangle with an obtuse angle
Perimeter
Distance around a ploygon
Acute Triangle
A triangle in which all angles are less then 90 degrees
Isosceles Triangle
A triangle with two or more sides of equal length
Diagonal
A line segment connecting two vertices of a polygon and is not a side
Hexagon
A polygon with six sides
Octagon
A polyon with eight sides
Acute Angle
An angle measuring grater then 0 degrees and less then 90 degrees
Line segment
The part of a line between to points. Written like: AB with line on top
Obtuse angle
An angle measuring greater then 90 degrees and less then 180 degrees.
Parallel lines
Two straight lines on a two-dimensional plane that do not intersect no matter how far they are extended
Pentagon
A polygon with five sides.
Polygon
A two-dimensional closed figure of straight line segments (edges or sides) connected end to end.
Ray
A part of a line that starts at a point on the line and contains all the points on the line that are on one side of the starting point.
Parallelogram
A quadrilateral with both pairs of opposite sides parallel
Trapezoid
A quadrilateral with one pair of parallel sides.
Regular polygon
A polygon in which all side lengths are equal and all angle measures are equal
Rhombus
A quadrilateral with all four sides of equal length.
Vertical Angles
The opposite angles where two lines meet.
Perpendicular lines
Two lines on a flat surface which make a right angle when they meet.
Quadrilateral
A ploygon with four sides
Rectangle
A quadrilateral with four right (90 degree) angles.
Right angle
An angle that measures 90 degrees
Circle
A set of points at a fixed distance (radius) from a point (center)
Right triangle
A triangle in which one angle is a right angle (90 degrees)
Vertex
The point where two consecutive sides of a polygon meet.
Square
A special rectangle with all sides of equal length
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