Q&A #7379

Teachers' Lounge Discussion: Volume of a sphere

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From: Loyd

To: Teacher2Teacher Public Discussion
Date: 2003101516:28:04
Subject: Re: Re: Vol formula for a sphere, cone & cylinder

It is worth pointing out that a cone with height=diameter of the base of cylinder and with the diameters of the bases equal, then the volume of s cone is 1/3 of the cylinder. This means that a cone with these dimensions are 1/2 of a sphere with similiar dimensions. To prove: 1/3xpixr^2x2r = (1/2)x4/3xpixr^3 2/3 x pixr^3 = 2/3 x pixr^3

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