NCERT Solutions Class 8 Maths Chapter 3 Understanding Quadrilaterals Exercise 3.1

Understanding Quadrilaterals

Exercise 3.1


1). Given here are some figures.

Classify each of them on the basis of the following.

(a) Simple curve                        (b) Simple closed curve

(c) Polygon                                (d) Convex polygon

(e) Concave polygon



(a) Simple curve

 Ans: Fig 1, 2, 5, 6, 7                   

(b) Simple closed curve

Ans:  Fig 1, 2, 5, 6, 7

(c) Polygon

Ans: Fig 1 and 2                            

(d) Convex polygon

Ans: Fig 2.

(e) Concave polygon

Ans: Fig 1

2). What is a regular polygon?

Ans: A regular polygon is both ‘equiangular’ and ‘equilateral’.

3). State the name of a regular polygon of

(i) 3 sides                    (ii) 4 sides                   (iii) 6 sides


(i) 3 sides

Ans: Equilateral triangle                 

(ii) 4 sides

Ans: Square

(iii) 6 sides

Ans: Regular Hexagon



Leave a Comment

Your email address will not be published. Required fields are marked *

error: Content is protected !!