3 Select the best statement from $$\begin{aligned} & \mathrm { P } \Rightarrow \mathrm { Q }
& \mathrm { P } \Leftarrow \mathrm { Q }
& \mathrm { P } \Leftrightarrow \mathrm { Q } \end{aligned}$$ none of the above
to describe the relationship between P and Q in each of the following cases.

1. P: WXYZ is a quadrilateral with 4 equal sides
   \(\mathrm { Q } : \mathrm { WXYZ }\) is a square
2. P: \(n\) is an odd integer Q : \(\quad ( n + 1 ) ^ { 2 }\) is an odd integer
3. P : \(n\) is greater than 1 and \(n\) is a prime number Q : \(\sqrt { n }\) is not an integer