a triangle-based pyramid
That 3D shape is called triangular pyramid.
tetrahedron
the triangular pyramid
A Triangular based Pyramid has 4 vertices, 6 edges and 4 faces.
cube
That 3D shape is called triangular pyramid.
A tetrahedron
cube
tetrahedron
A triangular pyramid.
the triangular pyramid
A tetrahedron
A sphere.
A Triangular based Pyramid has 4 vertices, 6 edges and 4 faces.
cube
A sphere is not a 3dshape
A sphere for example.