Ten points Libeled A. B. C. D. E. F. G. H, I. J axe arranged in a plane in such a way that no three Me on the same straight line.
a. How many straight lines are determined by the ten points'
b. How many of these straight lines do not pass through point -4?
C. How many triangles have three of the ten points as vertices? d. How many of these triangles do not have point A as a vertex?
The number of straight lines determined by the ten points.
10 points on a plane lebeled as . No three points are liying on a same straight line.
One straight line can be formed by minimum points.
The number of straight lines from these points is obtained by selecting points from the points, it is given by
The number of straight lines do not pass through point .
The triangles have three of the ten points as vertices.
The number of triangles do not have as a vertex.
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