There are infinitely many polyhedra.
Hexagonal Prism, Septagonal Prism, Ocatagonal Prism, Nonagonal Prism, Decagonal Prism, etc...
Chat with our AI personalities
A pyramid. It has a square base (4 corners) and four faces converging to a point (the fifth corner). You might be referring to a pentagon which has five sides and five corners.
no , it has five sides,,,,,,,, even that a rectangle has four sides
We don't know what a pentygon is. "Pentagon" means a figure with five sides. Since it has five sides, no pentagon has four sides. A "quadrilateral" has four sides. And pie are square.
There is a contradiction in your question. If the base has four equal sides then is it a square so not all the faces are Triangles. However if the base is a square and the rest of the faces are triangles then your object is a "Square-based Pyramid"
Five faces (it is a 3 dimensional shape). A four sided pyramid is a pentahedron. (penta- means five, -hedron means sides)