Six people show up at a small party. To be polite, everyone shakes hands with everyone else at the party. How many handshakes occur? Explain and draw a diagram.
Down the street a larger party takes place with 11 people. How many handshakes will there be at that party?
Optional: Can anyone figure out an algebraic equation for any number of people at a party?? What if there were 10,000 people at a party? What if there were "x" number of people at a party?
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