The area of a parallelogram is 31.5 ft2 and the height is 6.3 ft. What is the length of the base?

Use the parallelogram area formula: area = base × height. Divide the area, 31.5 square feet, by the height, 6.3 feet: 31.5 ÷ 6.3 = 5 feet. The base is 5 ft, so the correct choice is D.

AI-written and checked against the verified answer.