Maths Class 8 Understanding Quadrilaterals Chapter 3 Exercise 3.1 Question Answer

Solutions For All Chapters Maths Class 8

Ex 3.1 Class 8 Maths Question 1.
Given here are some figures.

Classify each of the above figure on the basis of the following:

(a) Simple curve

(b) Simple closed curve

(c) Polygon

(d) Convex polygon

(e) Concave polygon

Solution:

(a) Simple curve: (1), (2), (5), (6) and (7)
(b) Simple closed curve: (1), (2), (5), (6) and (7)
(c) Polygon: (1) and (2)
(d) Convex polygon: (2)
(e) Concave polygon: (1)

Ex 3.1 Class 8 Maths Question 2.
What is a regular polygon? State the name of a regular polygon of

(i) 3 sides

(ii) 4 sides

(iii) 6 sides

Solution:

A polygon with equal sides and equal angles is called a regular polygon.
(i) Equilateral triangle

(ii) Square

(iii) Regular Hexagon