Answer: One way to find the total number of handshakes is to use a table of values to track the number of handshakes as the number of people in the meeting increases.
Number of People | Number of Handshakes
1 | 0
2 | 1
3 | 3
4 | 6
5 | 10
6 | 15
7 | 21
8 | 28
9 | 36
10 | 45
11 | 55
12 | 66
13 | 78
14 | 91
We can use the formula for the triangular number (n*(n-1))/2 where n is the number of people in the meeting.
So, total handshakes (14*13)/2 = 91
Explanation: