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

Ncert Solutions For Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.6 Class 6 Maths Chapter 4 Exercise 4.6 Ncert Solutions For Class 6 Maths Chapter 4 Exercise 4.6 Ncert Solutions Class 6 Maths Chapter 4 Exercise 4.6 Ncert Maths Class 6 Chapter 4 Exercise 4.6 Ncert Class 6 Maths Chapter 4 Exercise 4.6 Class 6 Maths Ch 4 Ex 4.6

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

Question 1.
From the figure identify
(a) the center of the 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.
Solution :
(a) O is the centre of the circle.
(b) OA¯, OB¯, OC¯ are three radii of the circle.
(c) AC¯ is a diameter of the circle.
(d) ED¯ is a chord of the circle,
(e) O and P are two points in the interior.
(f) Q is a point in the exterior.
(e) OAB (shaped portion) is a sector of the circle.
(f) Shaded portion of the circular region enclosed by line segment ED and the corresponding arc.

Question 2.
(a) Is every diameter of a circle also a chord?
(b) Is every chord of a circle also a diameter?
Solution :
(a) Yes! every diameter of a circle is also a chord.
(b) No ! every chord of a circle is not also a

Question 3.
Draw any circle and mark:
(a) it’s center
(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.
Solution :
(a) O is the centre.
(b) OA¯ is a radius.
(c) AB¯ is a diameter.
(d) OBC is a sector.
(e) AGD is a segment.
(f) P is a point in its interior.
(g) Q is a point in its exterior.

(h) EF^  is an arc.

Question 4.
Say true or false:
(a) Two diameters of a circle will necessarily intersect.
(b) The center of a circle is always in its interior.
Solution :
(a) True
(b) True.

Question 1

Identify which figures are polygons

Solution

A figure is a polygon if:

• It is closed
• It is made of straight line segments

Answer:

$\text{Closed figures with straight sides are polygons}$

Question 2

Which of the following is not a polygon?

Solution

Figures with:

• Curved sides
• Open ends

are NOT polygons.

Answer:

$\text{Curved or open figures are not polygons}$

Question 3

Classify given shapes

Solution

• Triangle → Polygon
• Circle → Not a polygon
• Square → Polygon

Answer:

$\text{Triangle and Square are polygons, Circle is not}$

Question 4

Identify number of sides in a polygon

Solution

Examples:

• Triangle → 3 sides
• Square → 4 sides
• Pentagon → 5 sides

Answer:

$3,4,5\text{sides}$