There are 12 points, no three of which are in the same straight line except 5 of them which are in the same line. Find the number of lines.

There are 15 points in a plane, no three of which are in a st. line, except 6, all of which are in a st. line. The number of st. lines, which can be drawn by joining them is :

Out of 18 points in a plane, no three are in the same straight line except 5 point which are collinear. Find the number of lines that can be formed by joining them?

Statement-1: There are pge8 points in space no four of which are in the same with exception of q ge3 points which are in the same plane, then the number of planes each containing three points is .^(p)C_(3)-.^(q)C_(3) . Statement-2: 3 non-collinear points alwasy determine unique plane.

There are 10 points in a plane out of these points no three are in the same straight line except 4 points which are collinear. How many (i) straight lines (ii) trian-gles (iii) quadrilateral, by joining them?

Given p points in a plane, no three of which are collinear q of these Points, which are in the same straight line. Determine the number of (I) straight lines

If 7 points out of 12 are in the same straight line, then the number of triangles formed is :

In the fig AOB is a straight line. Find the value of x

Number of triangles formed by joining 12 points, 7 of which are in the same straight line, is :

There are 12 points in a plane in which 6 are collinear. Number of different straight lines that can be drawn by joining them, is a.51 b.52 c.132 d.18

Fill ups …………….points are sufficeints to draw a straight line.