An octagon has eight vertices. An octagon is a shape with eight sides, which makes eight angles and, therefore, eight vertices.
Continue ReadingAll octagons have eight sides made of straight lines, but only regular octagons have sides that are all equal, like a stop sign. Irregular octagons can even be concave, with some angles pointing inward. However, no side can cross another side in an octagon or in any type of polygon. An octagon is a type of polygon, as a polygon is an enclosed shape with straight lines for sides. Triangles, squares and rectangles are also polygons, as are hexagons. Circles, however, are not polygons.
Learn more about ShapesThe primary use of an octagon calculator is to learn more about the various spatial details within the octagon. With an octagon calculator, users can find out the area, perimeter and radii of different types of octagons.
Full Answer >An octagon has 20 diagonals. A shape's diagonals are determined by counting its number of sides, subtracting three and multiplying that number by the original number of sides. This number is then divided by two to equal the number of diagonals.
Full Answer >An octagon has eight sides. The word derives from the Greek words "okto" meaning "eight" and "gonia" meaning "angle." In many countries throughout the world, an example of an octagon seen in everyday life is the red "Stop" sign.
Full Answer >The name of an eight-sided shape is an octagon. In addition to the eight sides, the octagon also has eight vertices and eight interior angles. The interior angles add up to 1080 degrees.
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