Find the area and promote permitted and identify the shapes

First, we can identify the Shape. Seeing that its a 4-sided polygon with opposite sides parallel, we can say that i its a parallelogram.
The area of the parallelogram can be calculated by multiplying its base for its height. In this case:
[tex]A=c\cdot h=3\cdot4=12[/tex]So the area is 12 ft².
To calculate its perimeter, we add all the sides' lengths. Since it is a parallelogram, opposide side have the same length. Thus, the perimeter is:
[tex]P=2a+2c=2\cdot7+2\cdot3=14+6=20[/tex]So, the perimeter is 20 ft.