- Twelve people each shake hands with each other once. How many total handshakes are there?

Discover Questions

Use a half-angle formula to find the exact value of the expression.
cos 3pi/8? Cos^2 x+2cosx+1=0? What is the volume of a cylinder with a diameter of 1 foot and a height of 14 inches? Did the geography of Greece help or hinder the growth of its city states? Could you launch people on padded chairs into space from a gun?