heptagon
7 sides
A heptagon is a polygon with seven sides and seven angles. Its name comes from the Greek words for seven (hepta) and angle (gon).
Some properties of a regular heptagon:
– All seven sides are equal in length.
– All seven angles are equal in measure, each measuring approximately 128.57 degrees.
– The sum of the interior angles is 900 degrees.
– The exterior angles each measure 51.43 degrees.
– It can be inscribed in a circle, where each vertex lies on the circle.
A heptagon can also be irregular, meaning its sides and/or angles are not equal. In this case, its properties will vary.
Heptagons can be found in nature and in man-made structures, such as stop sign, which has a regular heptagonal shape due to its importance in traffic safety. The construction industry also uses heptagonal structures for buildings and bridges, as it provides strength and stability.
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