A cylinder has three faces or individual surfaces. It is a tube-shaped object that is solid on both ends, rather than hollow. It has one face on each end of the cylinder and a third face that wraps continuously around its shaft.
Know MoreEach individual surface of a three-dimensional object is considered a face. Faces are separated by edges. A cube has six faces, and a pyramid has four. While the individual surfaces on cubes and pyramids are easy to count because they are flat, faces are not always flat surfaces. They can also be curved, like the third face on a cylinder. Similarly, a cone has two faces and one edge, and a ball has only one face and no edges.
Learn more in ShapesAn octagonal pyramid has nine faces: eight are triangular faces and one face is a regular octagon. It also has 23 edges and nine vertices. The topmost corner that connects all the faces is called the apex.
Full Answer >A triangular prism has five faces, six vertices and nine edges. The face is the flat side of a solid figure, and it is typically in the form of a plane figure such as a rectangle, square or triangle, with the triangular prism having two triangular bases and three rectangular sides. Another type of prism is the rectangular prism, which has six rectangular faces, 12 vertices and eight edges.
Full Answer >An icosahedron is a regular polyhedron with 20 faces, all of which are equilateral triangles. An icosahedron has 30 edges and 12 vertices. Five equilateral triangles meet at each vertex.
Full Answer >A rectangular prism has six faces. Unlike many other prisms, the faces on a rectangular prism are all rectangles. For instance, a trapezoidal prism has two faces that are trapezoids while the other faces are rectangles.
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