How Many Handshakes
The question was how many handshakes it would take for everybody to shake everybody's hand. The challenge was how many times it went up for everybody to shake. We went through a process. We(5) used geometric figures. For one person there would be 0, for 2 there would be 1, for three there would be three, for four there would be six, for five there would be ten.
1 Person
2 People
3 People
4 People
5 People
The shapes would be a line, a triangle, square with a cross inside, and an octagon with a star inside.
Line
Triangle
Square with a cross inside
Pentagon with a star inside
In conclusion you can definitely use geometry for a lot of cool and useful stuff. Just look at the triangle.
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