A square room has side length 12.5 feet. What is the area of the floor in square feet?

A square room has side length 12.5 feet. What is the area of the floor in square feet?

• A. 125
• B. 150
• C. 156 1/4
• D. 156 1/2

Answer: (C)

Area of a square is found by squaring its side length. With a side of 12.5 feet, the floor area is 12.5 × 12.5 = 156.25 square feet. That can be written as 156 1/4. So the area is 156 1/4 square feet. The other numbers don’t match 156.25.

Area of a square is found by squaring its side length. With a side of 12.5 feet, the floor area is 12.5 × 12.5 = 156.25 square feet. That can be written as 156 1/4. So the area is 156 1/4 square feet. The other numbers don’t match 156.25.