Question

Any triangle is a ______ sided polygon.

(a) 1

(b) 2

(c) 3

(d) 4

This question was posed to me during a job interview.

Asked question is from Polygon topic in portion Quadrilaterals of Mathematics – Class 8

Answer 1

The correct choice is (c) 3

To explain I would say: A triangle is three sided polygon. The triangles are classified into three types (i) Equilateral Triangle (ii) Isosceles Triangle (iii) Scalene Triangle. This classification is done on the basis of length of each side and the angle between these sides.

(i) Equilateral Triangle: In this triangle all sides are of equal length and all the angles measure=60°

(ii) Isosceles Triangle: In this triangle, two sides are of equal length and the base angles are equal.

(iii) Scalene Triangle: In this triangle, all the sides are of different and all the angles are different in measure.