A pentagon is a two-dimensional geometric figure that has five sides. A regular pentagon is one where all five sides are the exact same length and the internal angles are all 108 degrees. More »

A pentagon has five diagonals on the inside of the shape. The diagonals of any polygon can be calculated using the formula n*(n-3)/2, where "n" is the number of sides. In the case of a pentagon, which "n" will be 5, the ... More »

A pentagon has five sides and five interior angles which add up to a total of 540 degrees. To determine the number of degrees of the interior angles in a pentagon requires subtracting two from the number of sides (five) ... More »

A pentagon has five sides and five interior angles which add up to a total of 540 degrees. To determine the number of degrees of the interior angles in a pentagon requires subtracting two from the number of sides (five) ... More »

A heptagon is a figure or polygon that has seven angles and seven sides. The sum of these seven interior angles has to equal 900 degrees. More »

A rhombus is an equilateral parallelogram, which is a two-dimensional, four-sided figure in which opposite sides are parallel and all sides have equal length. A square fits this definition. However, it is usually conside... More »

A heptagon is an equal-sided figure with seven sides. There are various ways to go about drawing this shape. One of the simplest and most accurate methods is by drawing three circles and two triangles. You need a compass... More »