4 triangles and 1 square.
A triangular pyramid has four triangular faces.
a triangular pyramid
triangular pyramid
Square Pyramid has a square base and 4 triangular sides. Triangular Pyramid has a triangle base and 3 triangular sides.
triangular pyramid
A square pyramid has a square base and four congruent triangular faces.
triangular prism pentagonal pyramid
octogons
Squares and triangles
Pyramids
Triangular based Pyramid
PYRAMID