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This is a "trigonal pyramid" or "tetrahedron."

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Which polyhedron has a triangular base and 3 triangular faces?

A three sided pyramid.


What polyhedron has a face that is not a base?

A polyhedron that has a face that is not a base is a triangular prism. In a triangular prism, the two triangular faces serve as the bases, while the three rectangular faces are considered lateral faces. These lateral faces are not bases, demonstrating that a polyhedron can have faces that are not classified as bases.


What is a tatrahedron?

No such thing A tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex. Similar to a pyramid but with a triangular base.


What polyhedron has 5 corners and 6 faces?

A triangular dipyramid - two triangular pyramids stuck together, base-to-base.


What shape has a triangular base and 3 other triangule faces?

The shape with a triangular base and three additional triangular faces is called a tetrahedron. It is a type of polyhedron that has four triangular faces, six edges, and four vertices. Tetrahedrons are one of the simplest three-dimensional shapes and are often studied in geometry and various scientific fields.


What is the regular polyhedron?

A regular polyhedron has equal size faces as in the case of a tetrahedron which is a triangular base pyramid that has 4 equilateral triangle faces.


What is a polyhedron with 4 equilateral triangle faces?

Tetrahedron - a pyramid with a triangular base.


Which polyhedron has 5 triangular faces and a square base?

A square based pyramid.


What is the difference between a tetrahedron and a triangular prism?

A tetrahedron is a polyhedron with four triangular faces, while a triangular prism is a polyhedron with two triangular faces and three rectangular faces. The main difference between the two shapes is their number of faces and their base shapes. Additionally, a tetrahedron has four vertices and six edges, while a triangular prism has six vertices and nine edges.


What is a polyhedron with 2 triangular bases and 3 other faces and those other faces are rectangles?

hexagon base prism


Which polyhedron has the least number of faces?

A TETRAHEDRON, which is commonly referred to a a triangular based pyramid. The jokingly, a sphere. It has two faces, and outside face and an inside face, Ha!!!Ha!!!


Name the faces of the 7 sided polyhedron?

There are a number of possible 7-sided polyhedra. Three that come immediately to mind are: a hexagonal pyramid, a pentagonal prism, a "stretched" triangular pyramid (triangular base, rectangular sides, and then triangular faces meeting at an apex).