AakashSudhakar one year ago [Calculus 3; Engineering Calculus] Can someone help me with the following surface integral? Thanks!

Evaluate the surface integral $\int\limits_{ }^{ }\int\limits_{S}^{ }(x^2+y^2+5z^2)dS$ where S is the part of the cone $z=6-\sqrt{x^2+y^2}$ above the plane $z=0$