Write down the converse of following statements :
(i) If S is a cyclic quadrilateral, then the opposite angles of S are supplementary.
(ii) If x is zero, then x is neither positive nor negative.
Write down the converse of following statements :
(i) If S is a cyclic quadrilateral, then the opposite angles of S are supplementary.
(ii) If x is zero, then x is neither positive nor negative.

Solution:

(i) It is known to us that a conditional statement is not logically equivalent to its converse.

Converse: If the opposite angles of a quadrilateral are supplementary, then $S$ is cyclic.

(ii) It is known to us that a conditional statement is not logically equivalent to its converse.

Converse: If $x$ is neither positive nor negative then $x = 0$