The statement that is true regarding cones and pyramids is:
Cones and pyramids have one vertex at the top.
Here's a brief explanation:
- Vertices: A cone has one vertex (the tip), while a pyramid has a vertex at the top and additional vertices at its base.
- Faces: A pyramid has a number of faces equal to the number of sides of its base, plus one more for the apex. A cone has one curved surface and a circular base.
- Therefore, they do not have the same number of faces.
So the correct generalization is about them having one vertex at the top.