Final answer:
The area of the surface is 20 square meters.
Step-by-step explanation:
To calculate the area of the surface, we can use the formula:
Pressure = Force / Area
Given that the force is 1200N and the pressure is 60Pa, we can rearrange the formula to solve for the area:
Area = Force / Pressure = 1200N / 60Pa = 20m²
Therefore, the area of the surface is 20 square meters.