(geometry) a flat shape with four right angles, especially one with opposing sides that are equal and parallel to each other
a shape with four equal, sloping straight sides, forming a point at the top and another at the bottom
(geometry) a round object that every point on its surface has the same distance from its center
(geometry) a solid or hollow shape with two circular bases at each end and straight parallel sides
(geometry) a three dimensional shape with a circular base that rises to a single point
a solid object with a square base and four triangular sides joined to a point on the top
a three-dimensional geometric shape with six rectangular faces, resembling a box or a rectangular prism
(geometry) a solid figure with flat sides and two parallel ends of the same size and shape
(geometry) any flat shape with four straight sides, the opposite sides of which are equal and parallel to each other
a curved shape with narrow points at the ends that appears wider in the middle, like the shape of the moon in its first and last quarters
a flat geometric shape consisting of three straight sides and one right angle
(geometry) a figure with four sides and two opposite angles more than 90° and two of less than 90°
(geometry) a round 3D shape like a ball that is slightly flattened at the top and bottom points
a seven-sided plane shape consisting of seven line segments or edges that meet at seven interior angles
(geometry) a flat star-shaped figure with six points that can be formed by making equilateral triangles on each side of a regular hexagon
(geometry) a shape that consists of a line alternating its direction to left and right
(geometry) a flat figure consisting of eleven straight sides and eleven angles
a solid shape resembling a donut or ring, made by spinning a circle around a line that does not cut through the circle
(mathematics) any of the pair of geometric figures such as lines or planes which do not meet or intersect