# Here we have given NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.2.

- Basic Geometrical Ideas Class 6 Ex 4.1
- Basic Geometrical Ideas Class 6 Ex 4.3
- Basic Geometrical Ideas Class 6 Ex 4.4
- Basic Geometrical Ideas Class 6 Ex 4.5
- Basic Geometrical Ideas Class 6 Ex 4.6

Board | CBSE |

Textbook | NCERT |

Class | Class 6 |

Subject | Maths |

Chapter | Chapter 4 |

Chapter Name | Basic Geometrical Ideas |

Exercise | Ex 4.2 |

Number of Questions Solved | 5 |

Category | NCERT Solutions |

## NCERT Solutions for Class 6 Maths Chapter 4 Basic Geometrical Ideas Ex 4.2

Ex 4.2 Class 6 Maths Question 1.

Classify the following curves as

(i) Open or

(ii) Closed.

Solution:

Open curves are (a) and (c) and closed curves are (b), (d) and (e).

Ex 4.2 Class 6 Maths Question 2.

Draw rough diagrams to illustrate the following:

(a) Open curve

(b) Closed curve

Solution:

Rough diagram to illustrate

(a) Open curve is

(b) Closed curve is

Ex 4.2 Class 6 Maths Question 3.

Draw any polygon and shade its interior.

Solution:

We know that in a closed curve, the interior is inside of the curve. Thus, shaded portion of the polygon indicate its interior.

Ex 4.2 Class 6 Maths Question 4.

Consider the given figure and answer the questions:

(a) Is it a curve?

(b) Is it closed?

Solution:

(a) Yes, the given figure represents a curve.

(b) Yes, the curve is closed.

Ex 4.2 Class 6 Maths 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) Impossible, as a close plane figure bounded by lines is called a polygon.

(b) Yes, it may be as

(c) No, impossible, as a polygon of two sides cannot be drawn.

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