Aomogenous solid with density k is bounded by the cone z

Question

A homogenous solid with density K is bounded by the cone z = √(x² + y²), the cylinder 4 = x² + y², and the plane z=0 a) Use spherical coordinates to find the volume of the solid. b) Use spherical coordinates to find the mass of the solid. c) Use spherical coordinates to find the centroid of the solid