Question

how is pressure related to the surface area on which it acts

Answer 1

The fundamental definition of pressure has a inverse relationship with the surface area
P=F/A
Thus When the area is increased the pressure acting on it decreases ! .. keeping the force constant !

Answer 2

PRESSURE IS RELATED TO SURFACE AREA BECAUSE THE LESSER SURFACE AREA THE PRESSURE WILL BE LESSER BECAUSE GRAVITY ATTRACTS THE BIGGER SIZE BETTER AND LESSER SIZE LESS