How do you make 3 triangles from 3 matches?

To make three triangles from three matches, arrange the matches to form a triangular pyramid (tetrahedron). Use one match for each edge of the base triangle, and the third match as the apex connecting to the base. This configuration creates a total of four triangular faces, but each base triangle is still counted as a distinct triangle. Thus, you effectively create three triangles using just three matches.