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Geometry Vocabulary

parallel side by side lines that will never cross
parallelogram a polygon with 2 sets of parallel sides
square a polygon with four equal sides and four right angles
right angle forms a perfect corner
quadrilateral any polygon that has four sides
rhombus a quadrilateral that had four equal sides but no right angles.
polygon any 2D closed shape with no crossed lines and no curved lines
trapezoid any quadrilateral with at least 1 set of parallel lines
regular polygon any polygon with equal sides
perimeter the outside measurement of any polygon
area the inside measurement of any polygon
angle 2 rays sharing an endpoint
attribute a characteristic of a shape
hexagon a polygon with 6 sides and 6 angles
octagon a polygon with 8 sides and 8 angles
triangle a polygon with 3 sides and 3 angles
pentagon a polygon with 5 sides and 5 angles
ray a figure that has one endpoint and 1 end that goes on forever
vertex the endpoint where to rays meet to form an angle.
Created by: Lemmings