What is the area of the base of the cylindrical tank in square feet?

• A. 28.27 sq ft
• B. 9.00 sq ft
• C. 18.85 sq ft
• D. 31.42 sq ft

Answer: (A)

The base area of a cylinder is the area of its circular base, calculated as A = π r^2. If the base radius is 3 feet, then A = π × 3^2 = 9π ≈ 28.27 square feet. The number 28.27 directly comes from a radius of 3 ft, so that area matches the given context. The other values would require different radii, but with the radius provided, 28.27 sq ft is the correct base area.