S = 4 π a^2 (assuming radius a)
x(u, v) = a cos(u) sin(v) y(u, v) = a sin(u) sin(v) z(u, v) = a cos(v)
x^2 + y^2 + z^2 = a^2
2
g = 0
ds^2 = a^2 sin^2(v) du^2 + a^2 dv^2
dA = a^2 sin(v) du dv
x^_ = (0, 0, 0)
V = (4 π a^3)/3
I = ((2 a^2)/5 | 0 | 0 0 | (2 a^2)/5 | 0 0 | 0 | (2 a^2)/5)
K(u, v) = 1/a^2
(for a sphere with center at the origin and radius a)