Question

Which of the following is not a polygon?

(a) Square

(b) Rectangle

(c) Parallelogram

(d) Circle

The question was posed to me in examination.

I need to ask this question from Kinds of Polygons in section Quadrilaterals of Mathematics – Class 8

Answer 1

Right choice is (d) Circle

For explanation I would say: Circle is not considered to be a polygon because it is a closed curve whereas the definition says that a ‘n’ sided closed figured containing straight lines is known as polygon. Since the circle does not satisfy all the conditions for a polygon it is not considered as a polygon.