# NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.1

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## NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.1

NCERT TEXTBOOK EXERCISES

Question 1. Use the figure to name:

(a) Five points
(b) A line
(c) Four rays
(d) Five line segments.

Solution :
(a) O, B, C. D, E

Question 2. Name the line given in all possible (twelve) ways, choosing only two letters at a time from the four given.

Solution :

Question 3. Use the figure to name:

(a) The line containing point E.
(b) The line passing through A.
(c) The line on which O lies
(d) Two pairs of intersecting lines.

Solution :
(a)
AE←→, etc.
(b) AE←→, etc.
(c) CO←→orOC←→
(d) CO,←→−AE←→;AE←→,EF←→.

Question 4. How many lines can pass through

(a) one given point?
(b) two given points?

Solution :

(a) Countless lines can pass through one given point.
(b) One and only one line can pass through two given points.

Question 5. Draw a rough figure and label suitably in each of the following cases :

(a) Point P lies on AB¯
(b) XY←→ and PQ←→ intersect at M.
(c) Line contains E and F but not D.
(d) Op¯ and OQ¯ meet at O.

Solution :
(a)

(b)

(c)

(d)

Question 6. Consider the following figure of line MN¯ 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 MN¯
(b) M, O, N are points on a line segment MN¯.
(c) M and N are end points of line segment MN¯.

(d) O and N are end points of line segment OP¯.
(e) M is one of the end points of line segment QO¯.
(f) M is point on ray OP−→−.
(g) Ray OP−→− is different from ray QP−→−.
(h) Ray OP−→− is same as ray OM−→−.
(i) Ray OM−→− is not opposite to ray OP−→−.
(j) O is not an initial point of OP−→−.
(k) N is the initial point of NP−→ and NM−→.

Solution :

(a) True
(b) True
(c) True
(d) False
(e) False
(f) False
(g) True
(h) False
(i) False
(j) False
(k) True.

## NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.1 PDF

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