Hello there. To solve this question, we'll have to remember some properties about polygons.
We have to indicate the meaning of the following shapes:
1. Rectangle
This is a case of a 4-sided polygon, with 4 right angles on its corners and two parallel sides with measures called length and width, say L and W.
The sketch is as follows:
2. Square
As a special case of the rectangle, it is another 4-sided polygon with right angles on its corners, but this time the length and the width are the same, therefore all its sides have the same measure.
The sketch is as follows: