Can anyone tell me the volume formulae for volume of a......

Rectangular Based Pyramid
Triangular Based Pyramid
Cone (Spherical Based Pyramid?)

I know cylinder is <font face="symbol">P</font>r² x h but I can't work out the rest.

Thanks very much.

;)
DJG

EDIT: Did I say Area? I'm in 3D, so that's volume. Thanks for pointing that out Chris. ;)

[ 12-05-2002, 02:22 PM: Message edited by: DJG ]

I don't think it's quite that simple [img]graemlins/crazyeyes.gif[/img] Have a look here

(I may not know a lot about maths, but I know what to type into Google [img]smile.gif[/img] )

Thanks very much Mouse!!!!

;)
DJG

........And all that site makes sense to me!!

Really! :D

No, honestly!!!! [img]tongue.gif[/img]

;)
DJG

Doh! ...and here was my chance to help! (scribbles down website address for future reference).

<font color="lightblue">Base area by height for prisms (including cylanders), one third of base area by height for Pyramids and Cones, four thirds pi by the cube of the radius for spheres. </font>

Well I just had to storm into this thread with answers a blazing, as for once I know them because I have just finished my exams the week gone. And Maths was based heavily on area or 3-D shapes and Indices. Pretty easy. But I come in and I find the answers have been given... Damn.. [img]tongue.gif[/img]

1/3 Base x Perpendicular Height For The Pyramids