We do not have straight sides so we need to use integration to solve this problem.
We will use <span>method of vertical strips. </span>We divide the area A into thin vertical strips of width dx, height y2-y1<span> and integrate from x1 to x2. </span>Assuming that lower left angle of dividers is in position (0,0) we have: y2=3 y1=0 x1=0 x2=8
Area is lower than 25ft^2 so <span>the can of paint is able to cover an area.</span>