C it adapted to the environment
4/7
4*2 ... 8
7*2 ... 14
8/14 = 4/7
<span>Best Regards, Mike</span>
The handshake problem!
Each of the five will play against 4 others, but since A vs B can be considered the same game as B vs A, so there are 5*4/2=10 matches.
It can give you a pretty good idea of how many degrees everything is. for example if something was 13degrees, you would be able to make an estimate because you know how much one degree is.
Answer:
angle-side-angle. that's my answer
