A circle-based pyramid, also known as a cone, has two faces: the circular base and the curved surface that tapers to a point at the apex. The base is a flat, two-dimensional shape, while the curved surface is a three-dimensional shape that extends from the base to the apex. Therefore, a circle-based pyramid has a total of two faces.
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A pyramid with a circle as it's base is also called a cone and it has two faces.
6 faces
A square pyramid has four triangular faces and one square face. In total, that is five faces.
A pyramid can have 4 or more faces. A pyramid, with a n-sided polygon as base will have n+1 faces. The polygon with the least number of sides is a triangle and a triangular pyramid (tetrahedron) has 4 faces. A square based pyramid has 5 faces, and so on.
There are lots of different types of pyramids but a square based pyramid has 5 faces, 5 corners and 8 edges
A triangular based pyramid is usually called a tetrahedron and it has 4 faces, 6 edges and 4 corners (usually called vertices)