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Geometry Vocabulary

The face on which a three dimensional object sits Base
A three dimensional figure with six congruent faces Cube
A ten-sided polygon Decagon
A six-sided polygon Hexagon
An eight-sided polygon Octagon
A five-sided polygon Pentagon
Two lines that form a right angle where they intersect Perpendicular
A closed figure made with 3 or more straight sides Polygon
A 3-D figure whose base is a polygon and all other faces are triangles Pyramid
A 3-D figure whose 2 congruent bases are polygons and all other faces are rectangles Prism
A 4-sided polygon Quadrilateral
An angle that measures 90 degrees Right angle
An angle that measures less than 90 degrees Acute angle
An angle that measures more than 90 degrees, but less than 180 degrees Obtuse angle
A three-sided polygon Triangle
Created by: cwhitley