California Lathing and Plastering Contractor (C-35 License) Practice Exam

Area conversion comes down to how area scales with length. When you change units by a factor, you square that factor for area. Since 1 yard equals 3 feet, 1 square yard equals 3^2 = 9 square feet. So 17 square yards equals 17 × 9 = 153 square feet. This is because both dimensions (length and width) are measured in feet in the final unit, so you multiply by 9, not just by 3.