Pyramid - they have three sides and a base = four faces
Shape
A ten faced solid is a decahedron.
A tetrahedron.
Isosceles TetrahedronA solid with four faces is a tetrahedron. Each of the faces is a triangle. If all the triangles are congruent, you have an isosceles tetrahedron.
A tetrahedron, otherwise known as a triangular pyramid, has four faces, four vertices and six edges.
An octahedron is any solid shape with eight flat faces.
A rectangular prism.
A cone perhaps
There is no shape with only four triangular faces and five vertices. If there is also a quadrilateral face then it is a quadrialteral based pyramid.
An edge of any solid shape is the line where two faces meet.
The surface of a solid. A square has four sides. A cube has six faces.
It could be a pyramid shape
Any solid object with six faces is a hexahedron. A regular hexahedron (with 12 edges) is a cube where all the faces are squares An irregular hexahedron (with 12 edges) is a cuboid where two faces are equal squares and four are equal rectangles.
There are different formulae for their surface areas, volumes, lengths of sides as well as for the numbers of faces, edges and vertices.
In geometry, a tetrahedron is a solid with four faces, which is a triangular pyramid (don't forget the base-face), and a regular tetrahedron has (4) faces that are equilateral triangles.
A cube is a 3D shape that has 6 faces of equal area.