Face,Edge and vertex/corner of 3D cone,cube,cuboid,cylinder,pyramid
2007-02-08 20:58:59 · 6 answers · asked by blue 1 in Science & Mathematics ➔ Mathematics
A Right Circular Cone: It has one curved surface of area 2*Pi*r*l and one plane circular face( base) of area Pi*r^2. (l=length of the generator, r = radius of the base). Its Volume is V=(1/3)pi*r^2*h = area of base * height ( h= height). It has one vertex or corner, one circular edge around the base.
Cube: It has six square faces, each of area l^2 ( l = length of each side), 12 edges, eight corners. Total area of the faces = 6*l^2, Volume = l^3.
Cuboid: It has six rectangular faces, 12 edges, eight corners. Total area of the faces = 2( l*b + l*h +b*h), Volume = l*b*h where l= length, b= breadth, h = height of the cuboid.
Right Circular Solid Cylinder: It has one curved surface and two plane circular faces, two circular edges, no corner. Its volume V = pi*r^2*h and surface area A = 2*pi*r*h + 2*pi*r^2. where , r= radius of the circular faces, h= its height, Pi=22/7.
Pyramid: It has four plane triangular faces and one square or rectangular base, eight edges and five corners. Its volume = (1/3)* area of the base * height.
Is there a triangular pyramid also? with 4 faces as triangles. I think Yes. Same formula for its volume.
Instead of right circular cylinder and cone, there exist slanted or inclined ones as well.
2007-02-08 21:37:44 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Well, these are the things in which I can give to you...
1. Cone - 2 faces, 0 edge, 1 vertex
2. Cube - 6 faces, 12 edges, 8 vertices
3. cylinder - 3 faces, 2 edges, 0 vertex...
Will these be okay?...
2007-02-08 21:07:25 · answer #2 · answered by xander_champ 2 · 0⤊ 0⤋
Well no I have 8 digit phone number !
2016-05-24 00:24:01 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Try Google.
2007-02-08 21:02:53 · answer #4 · answered by ag_iitkgp 7 · 0⤊ 1⤋
no because you won't learn anything if I tell you and if the next idiot helps you, shame on them.
2007-02-08 21:07:31 · answer #5 · answered by Anonymous · 0⤊ 2⤋
What do you want to know??
2007-02-08 21:47:29 · answer #6 · answered by Anonymous 2 · 0⤊ 0⤋