In figure, the vertices are O, A, B, C and D. Its side faces are triangles having a common vertex, called the vertex of the Pyramid. In figure, the faces are ABC, OAB, OCB, OAC.Ī square pyramid is a solid which stands on a square base. In figure edges are AB, BC, AC, OA, OC, OB. It has 4 vertices (in figure A, B, C, O).A pyramid is called triangular pyramid if its base is a triangle.Ī triangular pyramid in which all faces are equal is called tetrahedron. It tapers to a point called the vertex of the pyramid. This shape is usually found in ancient Egyptian sculptures.Ī triangular pyramid (tetrahedron) is a solid which stands on a triangular base. PyramidĪ pyramid is a solid whose base is a flat rectilinear figure and whose side faces are triangles having a common vertex outside the surface of the base. In figure, ABC, DEF, ABDE, AEFC, BDFC are faces.Ĭube and cuboid are also called square prism and rectangular prism respectively. The edges are AB, BC, AC, DE, EF, FD, BD, CF and AE. A ridge tent is an example of a triangular prism. Remember that if the bases of the prism are pentagon, then the prism is known as pentagonal prism.Ī triangular prism is made up of two triangles at each end and three rectangles. A cone has one curved face, and one flat face.Ī solid (3-D) shape that has only a curved surface is called sphere.Ī prism is a solid whose bases are identical polygon faces (triangles, quadrilaterals, pentagons etc.) and the other faces are rectangles.A cylinder has one curved face and two flat faces (in figure F 1 and F 2).Ī cone is a solid shape having a plane circular end as the base and whole lateral surface is the curved surface tapering into a point, called the vertex of the cone.A cylinder has two curved edges (in figure C 1 and C 2).
It is the shape of a tube light, tin container, circular pillars, circular pipes, circular pencils, measuring jars, road rollers and gas cylinders etc. 8 vertices are A, B, C, D, E, F, G, H.Ī solid shape in which top and bottom both are circular while the rest of the surface is curved. In figure, 12 edges are AB, BC, CD, DA, EF, GH, FG, EH, CG, BF, AE, DH.
In figure, ABCD, EFGH, ADHE, BCGF, ABFE, DCGH are faces. Length breadth and height of a cube are equal. A cube is made up of square faces.ĭefinition : A cuboid whose length, breadth and height are all equal, is called a cube. In figure 8 vertices are A, B, C, D, E, F, G, H.