A cylinder.
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a cylinder
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.
sphere
A two-dimensional shape with three sides is a triangle. A three-dimensional shape with three faces is a cylinder.
Pyramid - they have three sides and a base = four faces
It is the total surface area.