An 11-sided shape is called a hendecagon. The name is derived from the Greek words "hendeka," which means 11, and "gon," which means corner.
Continue ReadingAn 11-sided shape may also be called an undecagon or unidecagon, which is partly derived from the Latin word undecima, which means 11. However, most people prefer to use the word hendecagon because it consists of purely Greek words as opposed to a mix of Latin and Greek. Common properties of a regular hendecagon include 33-degree exterior angles and 147-degree internal angles. A real life example of a hendecagon is the rim of the U.S. Susan B. Anthony dollar coin.
Learn more about ShapesOne shape that has at least one line of symmetry is a rectangle. A rectangle has two lines of symmetry. Line symmetry,is also known as reflection symmetry.
Full Answer >A shape that has seven sides is a heptagon. Heptagons can be either irregular or regular polygons. However, in a regular heptagon, all side lengths and interior angles are also equal. There also are 14 diagonals in this polygon.
Full Answer >A quadrilateral is any two-dimensional shape or polygon that has four straight sides. A quadrilateral can also be called a quadrangle or a tetragon.
Full Answer >An inscribed polygon is a two-dimensional shape contained entirely within a circle. The points of each corner are on the circumference of the circle. Inscribed polygons have other special geometric properties.
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