{"id":4627,"date":"2020-12-11T06:54:06","date_gmt":"2020-12-11T01:24:06","guid":{"rendered":"https:\/\/cbselibrary.com\/?p=4627"},"modified":"2020-12-11T17:02:46","modified_gmt":"2020-12-11T11:32:46","slug":"different-types-of-3d-shapes","status":"publish","type":"post","link":"https:\/\/cbselibrary.com\/different-types-of-3d-shapes\/","title":{"rendered":"What are the Different Types Of 3-D Shapes?"},"content":{"rendered":"
The figures which can be described by mentioning two dimensions called length and breadth, are called 2D-shapes or plane figures. The shapes like cube<\/a>, cuboid<\/a>, cylinder<\/a>, pyramid<\/a>, cone<\/a> etc. which require three dimensions i.e.length, breadth and height or depth are called solid figures or 3-dimensional figures.<\/p>\n The objects having definite shape and size are called solids. A solid occupies a fixed amount of space and has three dimensions.<\/p>\n We live in a 3-dimensional world. Those objects you can see or touch has 3-dimensions as length, breadth, and height, for example, room, TV, chair, etc.\u00a0In the world around us, there are many 3-dimensional geometric shapes. Here, we will learn about some of them.<\/p>\n It is the shape of a matchbox, a chalk box, a brick, a tile, a book, an almirah etc. It is the shape of sugar lump, dice etc. A cube is made up of square faces. A solid shape in which top and bottom both are circular while the rest of the surface is curved. A cone<\/a> 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 solid (3-D) shape that has only a curved surface is called sphere<\/a>. A prism<\/a> is a solid whose bases are identical polygon faces (triangles, quadrilaterals, pentagons etc.) and the other faces are rectangles. A triangular prism<\/a> is made up of two triangles at each end and three rectangles. A ridge tent is an example of a triangular prism. Note :<\/strong> A pyramid<\/a> 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. This shape is usually found in ancient Egyptian sculptures. A triangular pyramid<\/a> (tetrahedron) is a solid which stands on a triangular base. It tapers to a point called the vertex of the pyramid. A pyramid is called triangular pyramid if its base is a triangle. A square pyramid<\/a> is a solid which stands on a square base. Its side faces are triangles having a common vertex, called the vertex of the Pyramid. A rectangular pyramid<\/a> is a solid which stands on a rectangular base. It also tapers to a point. Its side faces are triangles having a common vertex, called vertex of the pyramid. Note :<\/strong> The following table gives the summary of all above observations: <\/strong><\/p>\n Different Types Of 3-D Shapes The figures which can be described by mentioning two dimensions called length and breadth, are called 2D-shapes or plane figures. Example: Triangle, quadrilateral, and other polygons are all 2-dimensional figures. 3D Shapes (Solids) The shapes like cube, cuboid, cylinder, pyramid, cone etc. which require three dimensions i.e.length, breadth and height … Read more<\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[5],"tags":[2654,2663,6235,2667,2659,2656,6237,2657,2666,6236,2660,2661,2664,2658,6238,2655],"yoast_head":"\n
\nExample:<\/strong> Triangle<\/a>, quadrilateral<\/a>, and other polygons<\/a> are all 2-dimensional figures.<\/p>\n3D Shapes (Solids)<\/span><\/h3>\n
Types of 3-D figures<\/strong><\/span><\/h3>\n
Cuboid<\/span><\/h3>\n
\nIt is made of rectangles.
\nDefinition:<\/strong>A solid bounded by six rectangular faces (not all equal) is called a cuboid<\/a>. It has three dimensions, namely length, breadth and height.
\nVarious parts of a cuboid are<\/strong><\/p>\n
\n
\nIn figure ABCD, EFGH, ADHE, BCGF, ABFE, DCGH are faces.<\/li>\n
\nA cuboid has 12 edges. In figure edges are AB, BC, CD, DA, EF, GH, FG, EH, CG, BF, AE, DH.<\/li>\nCube<\/span><\/h3>\n
\nDefinition : <\/strong>A cuboid whose length, breadth and height are all equal, is called a cube<\/a>. Length breadth and height of a cube are equal.
\nVarious parts of a cube are:<\/strong><\/p>\n
\n
Cylinder<\/span><\/h3>\n
\nIt is the shape of a tube light, tin container, circular pillars, circular pipes, circular pencils, measuring jars, road rollers and gas cylinders<\/a> etc.
\nParts of a cylinder:<\/strong><\/p>\n
\n
Cone<\/span><\/h3>\n
\nParts of a cone:<\/strong><\/p>\n
\n
Sphere<\/span><\/h3>\n
\nParts of a sphere<\/strong><\/p>\n
\n
Prism<\/span><\/h3>\n
\nRemember that if the bases of the prism are pentagon, then the prism is known as pentagonal prism.
\n<\/p>\n
Triangular Prism<\/span><\/h3>\n
\nParts of triangular prism :<\/strong><\/p>\n
\n
\nCube and cuboid are also called square prism and rectangular prism respectively. \u00a0<\/strong><\/p>\nPyramid<\/span><\/h3>\n
\n<\/p>\n
Triangular Pyramid<\/span><\/h3>\n
\nA triangular pyramid in which all faces are equal is called tetrahedron.<\/strong>
\nParts of triangular pyramid :<\/strong><\/p>\n
\n
Square pyramid<\/span><\/h3>\n
\nParts of square pyramid :<\/strong><\/p>\n
\n
Rectangular Pyramid<\/span><\/h3>\n
\nParts of rectangular pyramid :<\/strong><\/p>\n
\n
\n(i) A pyramid is named according to the shape of its non-triangular face.
\n(ii) All the side faces of a pyramid (triangular, rectangular, square, pentagonal etc.) are triangular.<\/p>\n\n\n
\n Solid<\/strong><\/td>\n Name<\/strong><\/td>\n No. of Vertices<\/strong><\/td>\n No. of Edges<\/strong><\/td>\n No. of Faces<\/strong><\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Cuboid<\/td>\n 8<\/td>\n 12<\/td>\n 6<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Cube<\/td>\n 8<\/td>\n 12<\/td>\n 6<\/td>\n<\/tr>\n \n \u00a0 <\/strong><\/td>\n
Cylinder<\/td>\n \u2013<\/td>\n 2<\/td>\n 3<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Cone<\/td>\n 1<\/td>\n 1<\/td>\n 2<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Sphere<\/td>\n \u2013<\/td>\n \u2013<\/td>\n 1<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Triangular Prism<\/td>\n 6<\/td>\n 9<\/td>\n 5<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Triangular Pyramid<\/td>\n 4<\/td>\n 6<\/td>\n 4<\/td>\n<\/tr>\n \n \u00a0 <\/td>\n
Square Pyramid<\/td>\n 5<\/td>\n 8<\/td>\n 5<\/td>\n<\/tr>\n \n <\/td>\n
Rectangular Pyramid<\/td>\n 5<\/td>\n 8<\/td>\n 5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"