a solid is generated by revolving the region bounded by y=.1x^2 and y=10 about the y-axis.

a solid is generated by revolving the region bounded by y=.1x^2 and y=10 about the y-axis. a hole, centered along the axis of revolution, is drilled through this solid so that one-fourth of the volume is removed. find the diameter of the hole. round your answer to three decimal places.