Find radius of the incircle of a regular tetrahedron the length of each side being units.

Printable View

- January 8th 2009, 05:29 AMpankajtetrahedron
Find radius of the incircle of a regular tetrahedron the length of each side being units.

- January 8th 2009, 12:35 PMearboth
I assume that you mean the insphere. If so have a look here:

Tetrahedron - Wikipedia, the free encyclopedia

Ifis the length of one edge then the radius of the insphere is*a*