Final answer:
To find the area, we use the formula for the area of a rectangle (Length × Width), which for the family room measuring 12 feet by 11 feet comes to 132 square feet. Ben's mom will need a carpet that covers at least this area.
Step-by-step explanation:
The question is asking to calculate the area of a carpet for a family room by using the measurements provided. To find the area of a rectangle, the formula is Length × Width. Therefore, for the family room that measures 12 feet by 11 feet, the area calculation would be:
Area = Length × Width
= 12 feet × 11 feet
= 132 square feet
This means that Ben's mom would need to purchase a carpet that covers at least 132 square feet to fit the family room.