Nouns denoting two and three dimensional shapes

regular hexagon
a hexagon with six sides of equal length
 
internal angle
the angle inside two adjacent sides of a polygon
 
angular distance
the angular separation between two objects as perceived by an observer
 
polyhedron
a solid figure bounded by plane polygons or faces
 
bias
a line or cut across a fabric that is not at right angles to a side of the fabric
 
rhomboid
a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal
 
helix
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
 
Platonic solid
any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
 
corner
a small concavity
 
element of a cone
a straight line joining the apex and a point on the base
 
loop
anything with a round or oval shape (formed by a curve that is closed and does not intersect itself)
 
disproportion
lack of proportion; imbalance among the parts of something
 
octagon
an eight-sided polygon
 
blob
an indistinct shapeless form
 
hoodoo
(geology) a column of weathered and unusually shaped rock
 
two-dimensional figure
a two-dimensional shape
 
hook
a sharp curve or crook; a shape resembling a hook
 
vector
a straight line segment whose length is magnitude and whose orientation in space is direction
 
foursquare
(geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon
 
element of a cylinder
a straight line running the length of the cylinder
 
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