a combination of points and lines and planes that form a visible palpable shape

a plane figure with rounded sides curving inward at the top and intersecting at the bottom; conventionally used on playing cards and valentines

a closed plane figure bounded by straight sides

(geometry) a curve generated by the intersection of a plane and a circular cone

a plane figure that deviates from a square or circle due to elongation

a plane figure with the shape of half a circle