Answer to Question #192920 in Differential Geometry | Topology for Himanshi yadav

Question

Consider a unit surface S = {(x, y, x) : x2 + y2 + z2 = 1} with a parametrization

S : σ(u, v) = (sin(u) cos(v),sin(u) sin(v), cos(u)).

Answer 1

This is sphere with radius $r=1$