trapezoid
parallelogram
quadrilateral
pentagon
rhombus
square
rectangle
hexagon
triangle
A figure with four sides whose opposite sides are parallel and equal
A figure with five sides and five angles
four 90 degree angles opposite sides are equal and parallel
A figure with 6 sides and 6 angles
A 3-sided figure Angles may be acute, right, or obtuse
A 2D figure with 4 straight sides, with one pair of parallel sides
any closed, four-sided 2D figure
A figure with 4 equal sides, opposite sides parallel and opposite angles parallel
four 90 degree angles opposite sides are parallel all sides are equal lengths
