## 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.