There is no shape that has four sides and three corners. Two-dimensional shapes, known as polygons, have an equal number of sides and angles. In addition, none of the common three-dimensional shapes have four sides and three corners.
A polygon with three corners is a triangle, which also has three sides. Four-sided polygons are known as quadrilaterals. Examples of quadrilaterals include the square, rectangle and parallelogram. Common three-dimensional shapes include the cube, triangular prism, cone, cylinder and tetrahedron. None of the shapes have three corners, or vertices. Some, such as the cylinder, have no corners. Others, such as the tetrahedron, have four vertices.
Learn MoreA right circular cone's surface area is made up of two parts: the top part with the slanted sides and the circular base. The total surface area is found by finding the surface area of each part and adding them together.
Full Answer >You can calculate the perimeter of any object by adding the length of its sides. With a few simple measurements, you can quickly find the perimeter of a triangle.
Full Answer >There are four triangular faces on a tetrahedron. A face describes an individual surface on an object. On the tetrahedron, people can only see three of the four faces.
Full Answer >In geometry, a shape with five sides is called a pentagon. A regular pentagon has five sides of equal length, as well as five equal angles. A standard "STOP" sign in the US is a regular pentagon, as is the Pentagon building in the District of Columbia.
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