Consider the region bounded by y = ex, y = 4, and x = 0 . a solid is created so that the given region is its base and cross-sections perpendicular to the y-axis are squares. set up a riemann sum and then a definite integral needed to find the volume of the solid. what is the approximate volume of a slice perpendicular to the y-axis? you can type the word delta or use the calcpad when you need δ. (ln(y)2)δy in your definite integral what is the lower endpoint? 0 in your definite integral what is the upper endpoint? 1 evaluate the integral. give an exact answer.