1.a triangular pyramid has a triangle as its base.it is also know as a tetrahedrron.
faces:
edges:
corners:
2.a square pyramid has a square as its base.
faces:
edges:
corners:
3.a triangular prism looks like the shape of a kaleidoscope.it has triangles as its bases.
faces:
edges:
corners:

Dear student
.a triangular pyramid has a triangle as its base.it is also know as a tetrahedrron.
faces: 4
edges: 6
corners: 4
2.a square pyramid has a square as its base.
faces: 5
edges: 8
corners: 5
3.a c looks like the shape of a kaleidoscope.it has triangles as its bases.
faces:5
edges: 8
corners: 5
Regards