Final answer:
To find the area of a rectangle with a length of 1.5 feet and width of 3 inches, convert both measurements to the same unit. The area is 54 square inches or 0.375 square feet after conversions.
Step-by-step explanation:
To calculate the area of a rectangle, we multiply its length by its width. However, it's important to ensure both dimensions are in the same units. Given a rectangle with a length of 1.5 feet and a width of 3 inches, we first need to convert the length to inches since there are 12 inches in one foot. Therefore, the length is 1.5 feet x 12 inches/foot = 18 inches. The area in square inches is then 18 inches x 3 inches = 54 square inches.
To find the area in square feet, we convert the width to feet. Since there are 12 inches in one foot, the width is 3 inches ÷ 12 inches/foot = 0.25 feet. The area in square feet is then 1.5 feet x 0.25 feet = 0.375 square feet.