Geometry and shapes

ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point; "he ca…

any artifact having a shape similar to a plane geometric figure with four equal sides and four right angles; "a checkerboard has 64 squares"

any of various triangular drafting instruments used to draw straight lines at specified angles

A four-sided figure having only right angles; a right-angled parallelogram.

A plane figure having many angles, and consequently many sides; esp., one whose perimeter consists of more than four sides; any figure having ma…

a biased way of looking at or presenting something

a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"

a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)

the extent of a 2-dimensional surface enclosed within a boundary; "the area of a rectangle"; "it was about 500 square feet in area"

the property of something that is great in magnitude; "it is cheaper to buy it in bulk"; "he received a mass of correspondence"; "the volume of…

the size of something as given by the distance around it

(mathematics) one of a set of parallel geometric figures (parallel lines or planes); "parallels never meet"

A point where two or more lines meet

A branch of mathematics concerned with the properties and relations of points, lines, surfaces, and solids