These NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.6 Questions and Answers are prepared by our highly skilled subject experts.

## NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Exercise 4.6

Question 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:

(a) O is the centre.

(b) Three radii: \(\overline{\mathrm{OA}}\), \(\overline{\mathrm{OB}}\) and \(\overline{\mathrm{OC}}\)

(c) A diameter: \(\overline{\mathrm{AC}}\)

(d) A chord: \(\overline{\mathrm{ED}}\)

(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 circle also a diameter?

Answer:

(a) Yes, every diameter of a circle is also a chord. Diameter is also called as longest chord.

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

Question 3.

(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

(h) exterior an arc

Answer:

(a) Its centre is O.

(b) A radius is OB.

(c) A diameter is AB.

(d) A sector OC.

(e) Asegment is AJK.

(f) A point in its interior is Q.

(g) A point in its exterior is L.

(h) An arc is \(\begin{equation}

\widehat{\mathrm{AB}}

\end{equation}\).

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:

(a) True

(b) True