$\"\"$

Bases and sides:

Each pair of opposite sides of a parallelogram has the same measure.

Each base is 5.4 ft long ,and each side is 4.2 ft long.

$\"\"$

Perimeter:

The Perimeter of a polygon is the sum of the measures of its sides.

$\"\"$

$\"\"$ (Multiply: $\"\"$ )

$\"\"$ ft. (Add: $\"\"$ ) $\"\"$

Height:

Here parallelogram is a rectangle.So,side will be the height.

Height $\"\"$ ft. $\"\"$

Area:

$\"\"$ (Area of parallelogram)

$\"\"$ (Substitute $\"\"$ and $\"\"$ )

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

The Perimeter of the polygon is $\"\"$ ft and area $\"\"$ .