Posted by **Shay** on Monday, August 25, 2008 at 6:15pm.

seven people meet and shake hands with eachother- how many handshakes occur?

(second question)

using inductive reasoning, write a formula for the number of handshakes if the number of people is n

- Geometry (sorta) -
**bobpursley**, Monday, August 25, 2008 at 6:23pm
nCr = n!/(r!*(n-r)!) Think about that.

You need to go thru the reasoning. Try making a diagram with 4 folks (A,B,C,D) shaking hands

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