A flat square has 4 faces.
It has 5 flat faces because there are 4 flat faces at the top and 1 flat face at the bottom.
If you mean a tetrahedron then it is a triangular based pyramid with 4 flat faces
a pyramid with a triangular base has 4 faces. a pyramid with a square base has 5 faces.
A pyramid has 4 flat faces, all of which are triangular. Don't confuse this with a square-based pyramid like those in Egypt, as they have 5 faces.
A flat square has 4 faces.
It has 5 flat faces because there are 4 flat faces at the top and 1 flat face at the bottom.
If you mean a tetrahedron then it is a triangular based pyramid with 4 flat faces
a pyramid with a triangular base has 4 faces. a pyramid with a square base has 5 faces.
A tetrahedron.
a piramid
A pyramid has 4 flat faces, all of which are triangular. Don't confuse this with a square-based pyramid like those in Egypt, as they have 5 faces.
A rhombus is a plane (flat) figure so it has no faces. It has 4 edges and four vertices
A pyramid can have 4 or more faces. A pyramid, with a n-sided polygon as base will have n+1 faces. The polygon with the least number of sides is a triangle and a triangular pyramid (tetrahedron) has 4 faces. A square based pyramid has 5 faces, and so on.
A cube has 4 flat surfaces (called faces) and 6 vertices (or corners).
Triangular pyramid
a pyramid with a triangular base has 4 faces. a pyramid with a square base has 5 faces.