Geometry - 3D Shapes (Prisms And Pyramid)
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00:00hi kids today we will learn some more interesting 3d shapes that is prism and
00:10pyramids let's start with learning what is a prism in simple words prism is a
00:243d shape in which the top and bottom faces are the same shape and size and
00:34all the other faces are rectangles I will repeat prism is a 3d shape in which
00:45the top and bottom faces are same shape and size and all the other faces are
00:53rectangles there are many types of prisms depending upon the shape of its
01:03top and bottom faces or its cross-section let's see first one is the
01:14triangular prism this is a triangular prism because its top and bottom faces
01:24are triangle in shape and all other faces are rectangular it has six
01:34vertices nine edges and five faces now let's learn another type of prism this
01:47is a square prism this is a square prism because its top and bottom faces are
01:57square in shape and all other faces are rectangular this is the same as a cuboid
02:10so it has six faces eight vertices and 12 edges now let's learn another type of
02:22prism this is a rectangular prism because its top and bottom faces are
02:33rectangular and all other faces are rectangular too this is the same as
02:43cuboid shape so it has six faces eight vertices and 12 edges now let's learn
02:58another type of prism this is a pentagonal prism because its top and
03:08bottom faces are pentagon in shape and all other faces are rectangular it has
03:1910 vertices 15 edges and 7 faces there can be more types too depending on the
03:32shape of its top and bottom faces now we will be learning another 3d shape
03:41pyramid and its types first let's see what is a pyramid in simplest words
03:52pyramid is a 3d shape where it has a single base which can be of any polygon
04:02shape like triangle square rectangle or pentagon and all other faces are
04:13triangle in shape that converge to a single point at the top which is called
04:20its apex I repeat pyramid has a single base which can be of any polygon shape
04:31like triangle square rectangle and all other faces are triangle in shape that
04:42converge to a single point at the top which is called its apex most common
04:51pyramids are with triangle and square bases here are examples this is a
05:04triangular pyramid because its base is a triangle and all other faces are
05:13triangle and converge to a single point it has four vertices six edges and four
05:25faces these are common things of this shape this is a square pyramid because
05:36its base is a square and all other faces are triangle and converge to a single
05:46point it has five vertices eight edges and five faces these are some common
05:58things of this shape now this is a pentagon pyramid because its base is a
06:08pentagon and all other faces are triangle and converge to a single point
06:16it has six vertices ten edges and has six faces these are some common things
06:29of this shape okay kids today we learned various interesting 3d shapes hope you
06:39enjoyed learning as I did while teaching now you may go ahead and take a quiz to
06:45learn more bye bye