1.

8. In a plane there are 27 straight lines, of which 13 pass through the point A and 11 pass through point B. Bedsides, no three lines pass through points A and B and no two are parallel. Find the number of points of intersection of the straight lines.

Answer» 8. In a plane there are 27 straight lines, of which 13 pass through the point A and 11 pass through point B. Bedsides, no three lines pass through points A and B and no two are parallel. Find the number of points of intersection of the straight lines.


Discussion

No Comment Found