# NCERT Class 11 Chapter 12 Maths Introduction to Three MCQ | Questions & Answers

NCERT Class 11 Chapter 12 Maths Introduction to Three MCQ | Questions & Answers: Students who wish to acquire knowledge about NCERT Class 11 Chapter 12 Maths Introduction to Three concepts should go through this article and right away attempt the online quiz that we have accommodated here.

0%

Page 1 of 3

1. If orthocentre and circumcentre of a triangle are respectively (1, 1, 1) and (3, 2, 2), then the coordinates of its centroid is

2. A plane is parallel xy-plane, so it is perpendicular to

3. The locus of a point for which y = 0, z = 0 is

4. If the vertices of a triangle are A(0, 4, 1), B(2, 3, -1) and C(4, 5, 0), then orthocentre of a ΔABC is

5. The points (5, 2, 4), (6, -1, 2) and (8, -7, k) are collinear, if k is equal to

6. The point A(1, -1, 3), B(2, -4, 5) and C(5, -13, 11) are

7. The distance of point P(3, 4, 5) from the yz-plane is

8. What is the length of foot of perpendicular drawn from the point P(3, 4, 5) on y-axis?

9. If the distance between the points (a, 0, 1) and (0, 1, 2) is √27, then the value of a is

10. If x-coordinate of a point P of line joining the points Q(2, 2, 1) and R(5, 2, -2) is 4, then the z-coordinate of P is