## A Conversation for How to Calculate the Square Root of Any Number by Hand

### ratio explanation

julianumbers Started conversation Feb 28, 2011

the square root of 3, times by two, divided by pi equals 2.720699046: the ratio between the surface of a sphere and the surface of the tetrahedron that circumscribes it. does this mean the surface AREA'S, as I write it seems obvious, how do I calculate the area of a sphere, and a tetrahedron?, any help would be most appreciated, many thanks.

### ratio explanation

Vip Posted Mar 1, 2011

That's a tough question, and I'm afriad I can't help you with the answer.

I think the author is no longer active on h2g2, so I think it would be best if you posted your question to Ask h2g2:

http://www.bbc.co.uk/dna/h2g2/A148907

I hope you find the answer you need,

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