Concept explainers
(a) The base of a solid is a square with vertices located at (1, 0), (0, 1), (−1, 0), and (0, −1). Each cross-section perpendicular 10 the x-axis is a semicircle. Find the volume of the solid.
(b) Show that the volume of the solid of part (a) can be computed more simply by first cutting the solid and rearranging it to form a cone.
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