Notice that none of the interior angles measure greater than 180°, but at the same time, the sides and interior angles are not all congruent. The figure below shows an irregular convex heptagon example. A regular heptagon is always a convex heptagon, but a convex heptagon can either be regular or irregular. As a result, all of the diagonals of a convex hexagon lie within the boundaries of the shape. Convex heptagonĪ convex heptagon is a heptagon in which all interior angles measure less than 180°. An irregular heptagon can be either concave or convex. The figure below shows an irregular heptagon example:Īs can be seen in the figure, not all of the sides and angles of the heptagon are congruent, so it is irregular. 7 exterior angles measuring 51.43° each.Īn irregular heptagon is a heptagon that has varying measures of sides and interior angles.7 interior angles measuring ~128.57° each.The figure below shows a regular heptagon example:Ī regular heptagon has the following properties: Regular heptagonĪ regular heptagon is a heptagon whose sides and interior angles are all equal in measure. Heptagons are classified as regular or irregular and concave or convex. The figure below shows a few examples of the shapes that a heptagon can take on.
Two real-life heptagon examples include the fifty pence and twenty pence coins in the UK. What is a heptagonĪ heptagon is defined as a 7-sided, closed, two-dimensional shape.
A heptagon is also sometimes called a septagon. Home / geometry / shape / heptagon HeptagonĪ heptagon is a polygon that has seven sides (Hepta- means seven) and seven interior angles.
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