a pyramid
One square and four triangles.
A square pyramid has.
A square-based pyramid.
A square pyramid is one that has a square base. This means there are four triangles, one triangle on each side of the square base.
One square and four triangles.
One square and four triangles.
A square based pyramid.
One square and four triangles.
Triangles (four of) and a square.One square as base and four triangles as sides.
Triangular. the base is square, with four other triangular faces.
Five. Four triangles and one square make up a square pyramid.
A pyramid. The square being the base and the triangles the 'sides' - each having a side connected to a side of the square - the other sides connected to 'neighbor-triangles'.