That 3D shape is called triangular pyramid.
It is a pentagonal based pyramid that has 6 vertices, 6 faces and 10 edges
It is a square based pyramid that has 5 faces, 8 edges and 5 vertices
tetrahedron
It is a triangular prism that has 6 vertices, 5 faces and 9 edges
retangle
Sphere
# of faces + # of edges + # of vertecies + 2
Sphere ( 0 faces , 0 edges , 0 vertices )
That 3D shape is called triangular pyramid.
It is a pentagonal based pyramid that has 6 vertices, 6 faces and 10 edges
It is a square based pyramid that has 5 faces, 8 edges and 5 vertices
A pyramid
tetrahedron
Nonahedron
An octahedron.
a square