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Daily Practice Problems
Class 11 Maths
Introduction to Three Dimensional Geometry

Question 1:

Locate the following points in the space.

(i) (1, -1, 3)                                                     (ii) (-1, 2, 4)

(iii) (-2, -4, -7)                                                (iv) (-4, 2, -5)

Question 2:

How far apart are the points (2, 0, 0) and (-3, 0, 0)?

Question 3:

Find the third vertex of triangle whose centroid is origin and two vertices are (2,4,6) and (0, -2, -5).

Question 4:

Given that P(3, 2, -4), Q(5, 4, -6) and R(9, 8, -10) are collinear. Find the ratio in which Q divides PR.

Question 5:

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

(a) 3 units

(b) 4 units

(c) 5 units

(d) 550 units

Question 6:

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

Question 7:

Three consecutive vertices of a parallelogram ABCD are A(6, -2, 4), B(2, 4, -8) and C(-2, 2, 4). Find the coordinates of the fourth vertex.

Question 8:

Show that the triangle ABC with vertices A(0, 4, 1), B(2, 3, -1) and C(4, 5, 0) is right angled.

Question 9:

Find the equation of the set of points which are equidistant from the points

(1, 2, 3) and (3, 2, –1).

Question 10:

Find the co ordinate of the point which divides the join of P(2, -1, 4) and Q(4, 3, 2) in the ratio 2 : 5 (i) internally (ii) externally.

Question 11:

x = a represents a plane parallel to ____.

Question 12:

The equation of z-axis, are ______.

Question 13:

Find the ratio in which the YZ-plane divides the line segment formed by joining the points (–2, 4, 7) and (3, –5, 8).

Question 14:

What are the coordinates of the vertices of a cube whose edge is 2 units, one of whose vertices coincides with the origin and the three edges passing through the origin, coincides with the positive direction of the axes through the origin?

Question 15:

Find the lengths of the medians of the triangle with vertices A (0, 0, 6), B (0, 4, 0) and (6, 0, 0).

Question 16:

Show that, if x2 + y2 = 1, then the point {x, y, √(1 - x2 - y2)} is at a distance unit from the origin.

Question 17:

Let A, B, C be the feet of perpendiculars from a point P on x, y, z-axis respectively. Find the coordinates of A, B and C in each of the following where the P is (i) (3, 4, 2) (ii) (– 5, 3, 7) (iii) (4, – 3, – 5)

Question 18:

If a parallelepiped is formed by planes drawn through the points (5, 8, 10) and (3, 6, 8) parallel to the coordinate planes, then the length of diagonal of the parallelepiped is __________.

Question 19:

The length of the longest piece of a string that can be stretched straight in a rectangular room whose dimensions are 10, 13 and 8 units are _____.

Question 20:

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

(a) equation of x-axis

(b) equation of y-axis

(c) equation of z-axis

(d) None of these

**********

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In summary, problem-solving after learning a theoretical concept on CBSE Introduction to Three Dimensional Geometry Class 11 Maths is an essential part of the learning process. It enhances your understanding, critical thinking abilities, and retention of knowledge. Moreover, it equips you with valuable skills that are applicable in academic, personal, and professional contexts.

You must have heard of the phrase “Practice makes a man perfect”. Well, not just a man, practice indeed enhances perfection of every individual.

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All About Daily Practice Problems on Class 11 Maths Introduction to Three Dimensional Geometry NCERT Chapter 11

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on Class 11 Maths Introduction to Three Dimensional Geometry NCERT Chapter 11 useful.

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