NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

Mathematics (Maths) Class 6

Created by: Praveen Kumar

Class 6 : NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

The document NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev is a part of the Class 6 Course Mathematics (Maths) Class 6.
All you need of Class 6 at this link: Class 6

Exercise 4.1
Ques 1: Use the figure to name:

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(a) Five points
(b) A line
(c) Four rays
(d) Five line segments
Ans:

(a) Five points are:
 O, B, C, D, E
(b) A line:  
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(c) Four rays:
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(d) Four line segments:
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev


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

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
Ans:

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

Ques 3: Use the figure to name:

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(a) Line containing point E.
(b) Line passing through A.
(c) Line on which O lies.
(d) Two pairs of intersecting lines.

Ans: (a) A line containing NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(b) A line passing through NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(c) A line on which O lies NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(d) Two pairs of intersecting lines are NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

Ques 4: How many lines can pass through 
(a) one given point? 
(b) Two given points?
Ans: (a) Infinite number of lines can pass through one given point.

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(b) Only one line can pass through two given points. 

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

Ques 5: Draw a rough figure and label suitably in each of the following cases:
(a) Point P lies on NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev.
(b) NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev intersect at M.
(c) Line contains E and F but not D.
(d) NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev meet at O.
Ans:

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev


Ques 6: Consider the following figure of line NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev 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 NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(b) M, O, N are points on a line segment NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(c) M and N are end points of line segment NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(d) O and N are end points of line segment NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(e) M is one of the end points of line segment NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(f) M is point on ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(g) Ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev  is different from ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(h) Ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev is same as ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(i) Ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevis not opposite to ray NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(j) O is not an initial point of NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
Ans: (a) True
(b) True
(c) True
(d) False
(e) False
(f) False
(g) True
(h) False
(i) False
(j) False

Exercise 4.2
Ques 1: Classify the following curves as (i) Open or (ii) Closed.

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
Ans: (a) Open curve
(b) Closed curve
(c) Open curve
(d) Closed curve
(e) Closed curve

Ques 2: Draw rough diagrams to illustrate the following:
(a) Open curve 
(b) Closed curve.
Ans: (a) Open curves

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(b) Closed curves

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRevNCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev


Ques 3: Draw any polygon and shade its interior. 
Ans: Polygon ABCDE

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev


Ques 4: Consider the given figure and answer the questions:
(a) Is it a curve? 
(b) Is it closed?

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
Ans: (a) Yes, it is a curve.
(b) Yes, it is closed.

Ques 5: Illustrate, if possible, each one of the following with a rough diagram:
(a) A closed curve that is not a polygon.
(b) An open curve made up entirely of line segments.
(c) A polygon with two sides.
Ans:
(a)NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

(b)NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

(c) Polygon with two sides cannot be draw.

Exercise 4.3
Ques 1: Name the angles in the given figure.

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
Ans: There are four angles in given figure:
∠ ABC, ∠ CDA, ∠ DAB, ∠ DCB

Ques 2: In the given diagram, name the point (s)

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(a) In the interior of ∠DOE
(b) In the exterior of ∠EOF
(c) On ∠EOF
Ans: (a) Point interior of ∠DOE : A
(b) Points exterior of ∠EOF: C, A, D
(c) Points on ∠EOF: E, O, B, F

Ques 3: Draw rough diagrams of two angles such that they have
(a) One point in common.
(b) Two points in common.
(c) Three points in common.
(d) Four points in common.
(e) One ray in common.
Ans: (a) 

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(b)  

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(c)  

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(d) 

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev
(e)  

NCERT Solutions (Part - 1) - Basic Geometrical Ideas Class 6 Notes | EduRev

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