if the dimensions of the square pyramid are in meters, the surface area can be calculated as follows; Surface area = area of square base + area of lateral faces = (side length of square )² + (1/2 * slant height* perimeter) If we substitute the equations with the units of the dimensions area = (meters)² + (1/2* meters * meters) = m² + m² total area = m² therefore the area is obtained in square meters (m²)