Basic Geometry vocabulary

Match the following basic geometry terms. An angle that measures exactly 90 degrees right angle A closed shape with 4 sides quadrilateral An angle that measures between 0 and 90 degrees acute angle A closed shape with 5 sides pentagon An angle that measures between 90 and 180 degrees obtuse angle Two or more lines that cross at right angles perpendicular lines A closed shape with 6 sides hexagon Two or more lines that run in either direction and never cross parallel lines