You were watching TV while having dinner and your sister was scanning through the channels and stopped at the movie "The Mummy” as she saw the pyramids of Giza. She wanted to know about the shapeand you gave her a hint that "the shape is there in the name” and she gets the answer as
A pyramid is a 3D shape whose outer surfaces are triangular and converge to a single point at the top, making the shape a pyramid. The base of a pyramid can be trilateral, quadrilateral, or any polygon shape, meaning that a pyramid has at least three outer triangular surfaces.