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Home » NCERT Solutions » Class 6 » Maths » Chapter 4 Basic Geometrical Ideas » Exercise 4.6

Exercise 4.6

Last Updated on July 3, 2023 By Mrs Shilpi Nagpal

Class 6 Mathematics Chapter 4 |
Basic Geometrical Ideas | Exercise 4.6

Question 1 : Take a circular sheet. Fold it into two halves. Crease the fold and open up. Do you find that the circular region is halved by the diameter? A diameter of a circle divides it into two equal parts; each part is a semi-circle. A semi-circle is half of a circle, with the end points of diameter as part of the boundary.

Ex 4.6 Chapter 4 Maths Class 6Ex 4.6 Chapter 4 Math Class 6

1. From the figure, identify :

(a) the centre of circle

(b) three radii

(c) a diameter

(d) a chord

(e) two points in the interior

(f) a point in the exterior

(g) a sector

(h) a segment

Answer 1 : (a) O is the centre.

(b) Three radii: OA, OB and OC

(c) A diameter: AC

(d) A chord: ED

(e) Interior points: O, P

(f) Exterior point: Q

(g) A sector: OAB

(h) A segment: ED

Question 2. (a) Is every diameter of a circle also a chord? (b) Is every chord of a circle also a diameter?

Answer 2 : (a) Yes, every diameter of a circle is also a chord.

(b) No, every chord of a circle is not a diameter.

3. Draw any circle and mark

(a) its centre

(b) a radius

(c) a diameter

(d) a sector

(e) a segment

(f) a point in its interior

(g) a point in its exterior

(h) an arc

Answer 3 :

Answer 3

(a) Center : O

(b) Radius = OA

(c) Diameter = AB

(d) Sector = COD

(e) Segment = DE

(f) O

(g) F

(h) AC

Question 4. Say true or false :

(a) Two diameters of a circle will necessarily intersect.

(b) The centre of a circle is always in its interior.

Answer 4 : (a) True

(b) True

Filed Under: Chapter 4 Basic Geometrical Ideas, Class 6, Maths, NCERT Solutions

About Mrs Shilpi Nagpal

Author of this website, Mrs. Shilpi Nagpal is MSc (Hons, Chemistry) and BSc (Hons, Chemistry) from Delhi University, B.Ed. (I. P. University) and has many years of experience in teaching. She has started this educational website with the mindset of spreading free education to everyone.

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