NCERT solutions for class 6 Maths
chapter – 4
Basic Geometrical Ideas
Exercise 4.2
Ex 4.2 Question 1.
Classify the following curves as (i) Open or (ii) Closed.
Solution:
(a)Open curve
(b) Closed curve
(c) Open curve
(d) Closed curve
(e) Closed curve
Ex 4.2 Question 2.
Draw rough diagrams to illustrate the following :
(a) Open curve (b) Closed curve.
Solution:
Ex 4.2 Question 3.
Draw any polygon and shade it’s interior.
Solution:
Ex 4.2 Question 4.
Consider the given figure and answer the questions :
(a) Is it a curve? (b) Is it closed?
Solution:
(a)Yes, it is a curve.
(b) Yes, it is a closed curve.
Ex 4.2 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.
Solution:
(a)
(b)
(c) No, it is not possible to draw a polygon with two sides.
