Rectangle Tool is just below the Type tool and beside the path selection
tool.This tool is a shape tool.With the help of Rectangle Tool, we can draw
rectangular shape of any size.We can also draw shape of a square with the
help of this tool.In the options bar, we can change the opacity of the shape
and also we can change the mode of the shape.
This is the Rectangle Tool.Go on to that tool and just click on it to
select it.
Select the Rectangle Tool and position the pointer inside the work area
and just click and drag.Now we can draw shape of a rectangle of any size.
If we want to draw shape of a square, then just click and hold the shift
key, and now click and drag the tool.Now we can see the shape of a perfect
square.