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Geometry Test Review

two angles whose sum= 180° supplementary angles
two angles whose sum= 90° complementary angles
2 angles formed by intersection, opposite and - to each other vertical
2 angles that share a vertex and a side adjacent
one angle that is less than 90° acute
one angle that is more than 90° obtuse
one angle that is 90° right
lines intersecting to form 90° perpendicular lines
4 sides, for angles = 360° quadrilaterals
opposite sides parallel and equal parallelogram
all 4 sides equal and opposite sides parallel rhombus
on set of parallel sides (bases) others not trapezoid
opposite sides parallel and equal, 90° angles rectangle
all 4 sides equal, opposite sides parallel, 90° angles square
5 sided pentagon
6 sided hexagon
7 sided heptagon
8 sided octagon
9 sided nonagon
10 sided decagon
more than 10 sides n sides ---> n-gon
Created by: amanda2992