Use the image to answer the question.

An illustration shows a parallelogram turned so it rests on one corner. The area measures 4 point 5 square feet. The vertical height is indicated by a dashed perpendicular line from the angle on the right side to the opposite base and measures 2 feet. The length of the base is labeled with a question mark for the number of feet.

Solve the equation 4.5=2b to find the base of the window in the shape of a parallelogram. What is the base length?

6.5 ft.
6.5 ft.

9 ft.
9 ft.

2.5 ft.
2.5 ft.

2.25 ft.

2.25 ft.