The solid whose base is the region bounded by the curve y = cos x and the

Question:

The solid whose base is the region bounded by the curve y = √cos x and the x-axis on [-π/2, π/2], and whose cross sections through the solid perpendicular to the x-axis are isosceles right triangles with a horizontal leg in the xy-plane and a vertical leg above the x-axis

y y = Vcos x х х