This is a blog assignment.

1)
You walk into your first college class and the professor tells you to
shake hands and introduce yourself to every other student in the
classroom. Every student shakes hands with all other students exactly
once. How many handshakes were there (there are a total of 10 students
in class)?

2)
After everyone finishes shaking hands an eleventh student enters the
classroom. How many handshakes will there be (total) after he is done
shaking hands?

3) What would be the total if there were 20 students in the class?

The
following illustration is your hint as to how to figure out these three
answers. Post your three answers on your blog. Title the post "How
Many Handshakes?"

Additional hint- There is a pattern (formula) to this problem. Once you figure it out, you can quickly calculate the answer no matter how many people there are.

Additional hint- There is a pattern (formula) to this problem. Once you figure it out, you can quickly calculate the answer no matter how many people there are.

You may collaborate with your fellow classmates, but you must be able to explain your answers.

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