Is an equilateral triangle a regular polygon? Write yes or no.

Identify Rectangle is a regular polygon or not.  ( Write yes/no)

Identify Parallelogram is a regular polygon or not. ( Write yes or No)

In a parallelogram $PQRS, \angle P$ is thrice of $\angle Q$. Find all the angles of the parallelogram.

In a rhombus $\mathrm{ABCD}$, $\mathrm{AC}=\mathrm{AD}$. Find the value of $\angle B$.

If $\mathrm{PQRS}$ is a kite, then answer the following question.

 Is $\overline{RS}=\overline{RQ}$?

If $\mathrm{PQRS}$ is a kite, then answer the following question.

 Is $\overline{\mathrm{PS}}=\overline{\mathrm{PQ}}$?