Give reasons for the following.

A square is a rectangle as well as a rhombus.

A rectangle is a parallelogram.

Name the regular polygon with the least number of sides.

Name the regular polygon with each angle measuring $90°$.

Identify whether the following is a polygon or not. Give reasons for your answer.

Identify whether the following is a polygon or not. Give reasons for your answer.

Identify whether the following is a polygon or not. Give reasons for your answer.

Identify whether the following is a polygon or not. Give reasons for your answer.

Identify whether the following is a polygon or not. Give reasons for your answer.