# Class 11 Maths MCQ – Three Dimensional Geometry

This set of Class 11 Maths Chapter 12 Multiple Choice Questions & Answers (MCQs) focuses on “Three Dimensional Geometry”. These MCQs are created based on the latest CBSE syllabus and the NCERT curriculum, offering valuable assistance for exam preparation.

1. The point (4, 0, 0) lie on _____________
a) X-axis
b) Y-axis
c) Z-axis
d) Y-Z plane
View Answer

Answer: a
Explanation: In 3d coordinate system, a point with y and z coordinate zero and x-coordinate having non-zero value must lie on x-axis. So, (4, 0, 0) lie on x-axis.

2. The point (0, 0, 3) lie on ____________
a) X-axis
b) Y-axis
c) Z-axis
d) X-Y plane
View Answer

Answer: c
Explanation: In 3d coordinate system, a point with x and y coordinate zero and z-coordinate having non-zero value must lie on z-axis. So, (0, 0, 3) lie on z-axis.

3. The point (0, 2, 0) lie on _________
a) X-axis
b) Y-axis
c) Z-axis
d) X-Y plane
View Answer

Answer: b
Explanation: In 3d coordinate system, a point with x and z coordinate zero and y-coordinate having non-zero value must lie on y-axis. So, (0, 2, 0) lie on y-axis.
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4. The point (0, 2, 4) lie on _________
a) X-Y plane
b) Y-Z plane
c) X-Z plane
d) X-axis
View Answer

Answer: b
Explanation: In 3d coordinate system, a point with x-coordinate zero and y & z coordinate having non-zero value must lie on Y-Z plane. So, (0, 2, 4) lie on Y-Z plane.

5. The point (4, 2, 0) lie on _________
a) X-Y plane
b) Y-Z plane
c) X-Z plane
d) X-axis
View Answer

Answer: a
Explanation: In 3d coordinate system, a point with z-coordinate zero and x & y coordinate having non-zero value must lie on X-Y plane. So, (4, 2, 0) lie on X-Y plane.
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6. The point (3, 0, 4) lie on _________
a) X-Y plane
b) Y-Z plane
c) X-Z plane
d) X-axis
View Answer

Answer: c
Explanation: In 3d coordinate system, a point with y-coordinate zero and x & z coordinate having non-zero value must lie on X-Z plane. So, (3, 0, 4) lie on X-Z plane.

7. Find the distance of point (2, 3, 5) from X-Y plane.
a) 2 units
b) 3 units
c) 5 units
d) 1 unit
View Answer

Answer: c
Explanation: We know, distance of a point from X-Y plane is equal to the value of its z-coordinate.
So, distance of point (2, 3, 5) from X-Y plane is 5 units.
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8. Find the distance of point (2, 3, 5) from Y-Z plane.
a) 2 units
b) 3 units
c) 5 units
d) 1 unit
View Answer

Answer: a
Explanation: We know, distance of a point from Y-Z plane is equal to the value of its x-coordinate.
So, distance of point (2, 3, 5) from Y-Z plane is 2 units.

9. Find the distance of point (2, 3, 5) from X-Z plane.
a) 2 units
b) 3 units
c) 5 units
d) 1 unit
View Answer

Answer: b
Explanation: We know, distance of a point from X-Z plane is equal to the value of its y-coordinate.
So, distance of point (2, 3, 5) from X-Z plane is 3 units.
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10. 2-D geometry has ______________ quadrants.
a) 1
b) 2
c) 4
d) 8
View Answer

Answer: c
Explanation: 2-D geometry can have 2 coordinates each with positive or negative value.
Total quadrants = 2*2 = 4.

11. 3-D geometry has ______________ octants.
a) 1
b) 2
c) 4
d) 8
View Answer

Answer: d
Explanation: 3-D geometry can have 3 coordinates each with positive or negative value.
Total octants = 2*2*2 = 8.

12. In which octant does the point (1, 5, 7) lies?
a) 1st
b) 2nd
c) 6th
d) 7th
View Answer

Answer: a
Explanation: Since the point with all positive coordinates i.e. of the form (+, +, +) so lie in 1st octant.
So, (1, 5, 7) lies in 1st octant.

13. In which octant does the point (-1, – 5, -7) lies?
a) 1st
b) 2nd
c) 6th
d) 7th
View Answer

Answer: d
Explanation: Since the point with all negative coordinates i.e. of the form (-, -, -) lie in 7th octant.
So, (-1, – 5, -7) lies in 7th octant.

14. In which octant does the point (-1, 5, 7) lies?
a) 1st
b) 2nd
c) 6th
d) 7th
View Answer

Answer: b
Explanation: Since the point with only x coordinate negative i.e. of the form (-, +, +) lie in 2nd octant.
So, (-1, 5, 7) lies in 2nd octant.

15. In which octant does the point (-1, 5, -7) lies?
a) 1st
b) 2nd
c) 6th
d) 7th
View Answer

Answer: c
Explanation: Since the point with only y coordinate positive i.e. of the form (-, +, -) lie in 6th octant.
So, (-1, 5, -7) lies in 6th octant.

More MCQs on Class 11 Maths Chapter 12:

To practice all chapters and topics of class 11 Mathematics, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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