On the drawing with a scale of 1:2000, a rectangular building is measured to be 2.5cm long and 1.35cm wide. What is the floor area of this building? Solve with proportion

On the drawing with a scale of 1:2000, a rectangular building is measured to be 2.5cm long and 1.35cm wide. What is the floor area of this building? Solve with proportion

25 * 13.5 * 2 * 2 = 1350 square meters