Questions & Answers

Question

Answers

A) 1

B) 0

C) 2

D) 4

Answer
Verified

We know that a quadrilateral consists of four sides and a quadrilateral of five sides never exist. Since, the set A has no solution. Hence, it is an empty set.

A$=\{\ \}$

Cardinal number of A

$=n(A)$

Since there are no elements the Cardinal no 0.