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pre-alg terms

gr. 7P re-algebra terms

two rays with a common end point angle
less than 90 angles and greater than zero acute
line that intersects two parallel lines to form eight angles transversial
ten sides decagon
an angle with a measure equal to 180 degrees straight
a transformation where a figure is flippled over a line (flip) reflection
where three or more planes intersect in a point vertex
(next to)two angles that have the same vertex share a common side and do not overlap adjacent
a quadrilateral with exactly one pair of parallel sides trapezoid
a never ending straight path line
the most common unit of measure for angles degrees
a parallelogram with all sides congruent and four right angles square
line segments that have the same length, or angles that have the same measure, shape, or size (clone) congruent
a parallelogram with four right angles rectangle
circle 360 degrees
twelve sides dodecagon
the set of all points in a plane that are the same distance from a given point called the center circle
two angles are ______ if the sum of their measures is 90 degrees complementary
a polygon having three sides triangle
a polygon having all sides congruent and all angles congruent regular polygon
lines that intersect to form a right angle perpendicular
part of a line contraining two endpoints and all the points between them line segment
triangle with all sides congruent equilateral
two angles are ______ if the sum of their measures is 180 degrees supplementary
a closed figure with four sides and four vertices, including squares, rectangles, and trapezoids quadrilateral
a quadrilateral with opposite sides parallel and congruent parallelogram
having five sides pentagon
having eight sides octagon
a transformatin where a figure is slid from one position to another without being turned (slide) translation
an angle with a 90 degree measure right
having the same value equal
a simple closed figure in a plane formed by three or more line segments polygon
a triangle that has at least two congruent sides isosceles
a parallelogram with four congruent sides rhombus
having seven sides heptagon
an instrument used to measure angles protractor
a triangle with no congruent sides scalene
a part of a line that extneds indefinitely in one direction ray
having nine sides nonagon
having six sides hexagon
a transformation where a figure is turned around a fixed point (turn) rotation
an angle from 91 degrees to 179 degrees obtuse
lines that are in the same plane that do not intersect parallel
straight line 180 degrees
Created by: fhershey