The Great Pyramids of Egypt are square pyramids. Their base is in the shape of a square, and the apex is centered on top.
Triangular pyramids, instead of having a square base, have a triangular base. A pentagonal pyramid has a pentagon as its base. This rule applies to many other shapes.
Pyramids can vary based on where the apex lies in relation to the base. The apex is the point where all of the sides meet at the top of the pyramid. In a right pyramid, the apex lies directly above the center point of the base, but in an oblique pyramid, the apex can be off to the side, giving the pyramid an uneven look.
Regular and irregular pyramids exist. Regular pyramids have a regular polygon, such as a square, as the base. Irregular pyramids have an irregular polygon as the base.
Learn MoreA real-life example of a scalene triangle is a roof truss as used in the building roofs on houses and buildings. Other examples include ramps and sails. A scalene triangle is defined as a triangle with no equal sides and no three angles the same.
Full Answer >A pentagon is the name for a five-sided polygon. However, there are different types of five-sided polygons, such as irregular, regular, concave and convex pentagons.
Full Answer >A flat 10-sided shape with sides of equal length is called a decagon. A solid 10-sided shape with faces of equal size and shape is called a decahedron.
Full Answer >The dodecagon is the name of a 12-sided shape. This polygon also has 12 interior angles and 12 vertices. The sum of the interior angles of the dodecagon is 1,800 degrees.
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