The base of a solid is created by the curve y = + 4 , the x-axis, the y-axis, and the vertical line x = 1. Find the volume if the cross sections perpendicular to the x-axis are: A. squares 131 volume= T J 6' B. isosceles right triangles with one leg on the base 131 volume= W J o'6 c. right triangles where one leg is 4 times the length as the leg on the base g 3 volume = x d. semi-circles with the diameter on the base volume =