Exercise 4.2

Class 6 | Mathematics | Chapter 4| Basic Geometrical Ideas | Exercise 4.2

Question 1. Classify the following curves as (i) Open or (ii) Closed.

Answer 1: (a) Open curve (b) Closed curve (c) Open curve (d) Closed curve (e) Closed curve

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

Answer 2 :

a) Open curves

b) closed curve

Question 3. Draw any polygon and shade its interior.

Answer 3:

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

Answer 4:

a) Yes, it is a curve

b) Yes, it is closed.

Question 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.

Answer 5 :

(a)

(b)

(c) Polygon with two sides cannot be draw.