Question 333661
Write an algebraic model to find the number of possible segments drawn using "n" points on a circle. 
This is the data
#of points on circle---#of segments drawn
2-1= (2*1)/2
3-3= (3*2)/2
4-6= (4*3)/2
5-10=(5*4)/2
6-15=(6*5)/2
---
n points -(n)(n-1)/2 segments
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Cheers,
Stan H.