A plane figure having five angles, and, consequently, five sides; any figure having five angles.

Plane figure with five straight sides. In a regular pentagon, one with all five sides and angles equal, the angles are all 108°. A regular pentagon can be superimposed on itself after rotation through 72° (2/5 radians).

A polygon having five angles and five sides. Each angle is 108 degrees.

A polygon with 5 sides and 5 angles.

A polygon with 5 angles and 5 sides.

A shape with five straight sides.

a government building with five sides that serves as the headquarters of the United States Department of Defense

a figure, having five angles or sides

a plane figure having five side and five angles

a polygon having five sides and five interior angles

A pentagon is any five-sided figure.

A five sided polygon. Regular pentagons have five equal sides and five equal angles.

Headquarters of Department of Defense, attacked on 9/11/01.

A five sided polygon, not a star.

A figure, usually a plane rectilineal figure, having five angles and five sides.

building in Washington, D.C. that is shaped like a pentagon (five-sided figure). The Pentagon serves as the headquarters for the Department of Defense and the Joint Chiefs of Staff. Built during World War II, the Pentagon is the largest office building in the world. It holds 20 miles of corridors; 24,000 employees; 4,200 clocks; 685 water fountains; and 87,000 telephones connected by 100,000 miles of cable. Every day, employees and others in the building drink about 30,000 cups of coffee and make about 200,000 telephone calls.

A polygon with five sides and five angles.

a geometric shape with five sides.

A plane figure with five angles and five sides.

A five-sided polygon (Lesson 2.5).

In geometry, a pentagon is any five-sided polygon. However, the term is commonly used to mean a regular pentagon, where all sides are equal and all angles are equal (to 108Â°). Its SchlÃ¤fli symbol is {5}.