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Geometry Quiz 6
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Gravity
Terms in this set (40)
point
An exact position, often marked by a dot
line
A set of points that forms an endless straight path in opposite directions
endpoint
Points that mark the ends of a line segment
line segment
A part of a line with two endpoints
intersecting lines
Lines that cross each other at a point
perpendicular lines
Lines (or line segments or rays) that cross and make square (right, 90 degree) angles
parallel lines
Lines that never cross
ray
A part of a line with only one endpoint
angle
Two rays meeting at the same endpoint
vertex of an angle
The endpoint of two rays that meet and form an angle
right angle
An angle that makes a square corner (90 degrees)
obtuse angle
An angle that is open more than a right angle
acute angle
An angle that is open less than a right angle
polygon
A closed figure made up of line segments
regular polygon
A polygon in which all sides are the same length
side
A line segment that forms part of a polygon
opposite sides
Sides of a polygon that are directly across from each other
diagonal
A line that connects two vertices of a polygon that are not next to each other
congruent
Geometric figures that are the same size and shape
line of symmetry
An invisible line that divides a figure so that the figure can be folded along that line into matching parts
symmetrical
Describing figures that have one or more lines of symmetry
triangle
Polygon with three sides
quadrilateral
Polygon with four sides
pentagon
Polygon with five sides
hexagon
Polygon with six sides
octagon
Polygon with eight sides
decagon
Polygon with ten sides
Right triangle
A triangle with a right angle
Obtuse triangle
A triangle with an obtuse angle
Acute triangle
A triangle with three acute angles
equilateral triangle
A triangle with three equal side lengths
isosceles triangle
A triangle with two equal side lengths
scalene triangle
A triangle with no equal side lengths
trapezoid
A quadrilateral with exactly one pair of parallel sides
parallelogram
A quadrilateral with exactly two pairs of parallel sides
rectangle
A parallelogram with four right angles
rhombus
A parallelogram with all equal side lengths
square
A parallelogram with four right angles AND all equal side lengths
length
The distance of the longer side of a rectangle
width
The distance of the shorter side of a rectangle
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