# data[].attributes.body
problem #1

A -> B,C,D,E
B -> A,C,D,E
C -> A,B,D,E
D -> A,B,C,E
E -> A,B,C,D

4X5 = 20 HANDSHAKES

N(N-1)

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Formula for second question

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First person shakes hands with 8 then the next one shakes hands with 7 and so on . These values can then be added

# data[].attributes.body
each side can make three less diagonals than the number of sides (not each neighbor or itself). So for 8 sides, each vertex can make 5 diagonals. So the total number of diagonals is the number of vertices multiplied by the number of diagonals. But wait! Then we have too many diagonals because we have counted each diagonal twice, so divide by 2!

[x(x-3)]/2

# data[].attributes.headline
Please post your work by adding a post and typing up your group's ideas or taking a picture of the work you are doing by paper/pencil.

# data[].attributes.subject
Please post your work by adding a post and typing up your group's ideas or taking a picture of the work you are doing by paper/pencil.