There are 10 points on a circle. A hexagon can be formed by linking 8 of the 10 points. How many such hexagons are possible?	Pick one
A) 45  B) 120  C) 200  D) 210  E) 600
8 points can be selected out of 10 points in 10C8 ways   =10 !/8!*2!=45   45ns 45
<result>A</result>
There are 10 points on a circle. A hexagon can be formed by linking 8 of the 10 points. How many such hexagons are possible?