NCERT Solutions Class 6 Maths
Chapter – 4 (Basic Geometrical Ideas)
The NCERT Solutions in English Language for Class 6 Mathematics Chapter – 4 Basic Geometrical Ideas Exercise 4.1 has been provided here to help the students in solving the questions from this exercise.
Chapter 4: Basic Geometrical Ideas
- NCERT Solution Class 6 Maths Exercise – 4.2
- NCERT Solution Class 6 Maths Exercise – 4.3
- NCERT Solution Class 6 Maths Exercise – 4.4
- NCERT Solution Class 6 Maths Exercise – 4.5
- NCERT Solution Class 6 Maths Exercise – 4.6
Exercise – 4.1
1. Use the figure to name:
(a) Five points
(b) A line
(c) Four rays
(d) Five line segments
Solutions:
(a) The five points are D, E, O, B and C.
(b) A line is 
.
(c) Four rays are 
, 
, 
and 
.
(d) Five line segments are and
.
2. Name the line given in all possible (twelve) ways, choosing only two letters at a time from the four given.
Solutions:
The lines are .
3. Use the figure to name:
(a) Line containing point E.
(b) Line passing through A.
(c) Line on which O lies
(d) Two pairs of intersecting lines.
Solutions:
(a) Line containing point E is
(b) Line passing through A is
(c) Line on which O lies is
(d) Two pairs of intersecting lines are ,
and
,
4. How many lines can pass through (a) one given point? (b) two given points?
Solutions:
(a) Countless lines can pass through a given point.
(b) Only one line can pass through a two given points.
5. Draw a rough figure and label suitably in each of the following cases:
(a) Point P lies on .
(b) and
intersect at M.
(c) Line l contains E and F but not D.
(d) and
meet at O.
Solutions:
(a)
(b)
(c)
(d)
6. Consider the following figure of line . Say whether following statements are true or false in context of the given figure.
(a) Q, M, O, N, P are points on the line .
(b) M, O, N are points on a line segment .
(c) M and N are end points of line segment .
(d) O and N are end points of line segment .
(e) M is one of the end points of line segment .
(f) M is point on ray .
(g) Ray is different from ray
.
(h) Ray is same as ray
.
(i) Ray is not opposite to ray
.
(j) O is not an initial point of .
(k) N is the initial point of and
.
Solutions:
(a) True
(b) True
(c) True
(d) False
(e) False
(f) False
(g) True
(h) False
(i) False
(j) False
(k) True
