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Heptagon facts for kids

Kids Encyclopedia Facts
Heptagon
A heptagon

A heptagon or septagon or 7-gon is a shape with 7 sides and 7 corners.

Regular heptagon

All sides of a regular heptagon are the same length. Each corner is 147.27°. All corners added together equal 6840°.

Area

The amount of space a regular heptagon takes up is

A = \frac{7}{4}a^2 \cot \frac{\pi}{7} \simeq 3.634 a^2.

a is the length of one of its sides.


Images for kids

  • Symmetries of heptagon

    Symmetries of a regular heptagon. Vertices are colored by their symmetry positions. Blue mirror lines are drawn through vertices and edges. Gyration orders are given in the center.

  • Geometry problem-Sb 13088-IMG 0593-white

    Geometry problem of the surface of a heptagon divided into triangles, on a clay tablet belonging to a school for scribes; Susa, the first half of the 2nd millennium BCE

See also

Kids robot.svg In Spanish: Heptágono para niños

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Heptagon Facts for Kids. Kiddle Encyclopedia.