A solid has a polygon as its base and faces that converge at a single point. What is it called?

1. A pyramid is a solid with a polygon as its base and faces that converge at a point. 2. That meeting point is called the apex of the pyramid. 3. Its faces are therefore not perpendicular to the base, unlike those of a right prism. 4. A cone works in the same way but has a circle rather than a polygon as its base. _Source: Siyavula Mathematics Grade 10 (Everything Maths, CC BY 4.0), Chapter 13: Measurements_