Find the volume V of the described solid S. The base of S is an elliptical region with boundary curve 9x^2 + 16y^2 = 144. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.
Find the volume V of the described solid S. The base of S is an elliptical region with boundary curve 9x^2 + 16y^2 = 144. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.