Home
Class 11
MATHS
There are 10 points in a plane and 4 o...

There are 10 points in a plane and 4 of them are collinear. The number of straight lines joining any two points is

A

45

B

40

C

39

D

38

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER -19

    FULL MARKS|Exercise SAMPLE PAPER UNSOLVED-19(II)|9 Videos

  • SAMPLE PAPER -19

    FULL MARKS|Exercise SAMPLE PAPER UNSOLVED-19(III)|10 Videos

  • SAMPLE PAPER -17

    FULL MARKS|Exercise PART -IV|7 Videos

  • SAMPLE PAPER -5

    FULL MARKS|Exercise PART-I (CHOOSE THE CORRECT ANSWER)|2 Videos

Similar Questions

Explore conceptually related problems

There are 10 points in a plane and 3 of them are collinear. The number of straight line joining any two points is ……….. .

There are 8 points in a plane, no three of them are collinear .The number of triangles that can be formed is:

There are 10 points on a plane of which no three points are collinear. If lines are formed joining these points, find the maximum points of intersection of these lines.

There are 10 points on a plane of which 5 points are collinear. Also, no three of the remaining 5 points are collinear. Then find (i) the number of straight lines joining these points: (ii) the number of triangles, formed by joining these points.

There are 10 points in a plane no three of which are collinear except 4 of them which lie on a line. The number of straight lines determined by them is

There are 11 points in a plane. No three of these lies in the same straight line except 4 points, which are collinear. Find , (i) the number of straight lines that can be obtained from the pairs of these points ? (ii) the number of triangles that can be formed for which the points are their vertices ?

There are 11 points in a plane. No three of these lies in the same straight line except 4 points, which are collinear. Find, (i) the number of straight lines that can be obtained from the pairs of these points? (ii) the number of triangles that can be formed for which the points are their vertices?

Prove that any three points on a circle cannot be collinear.