Hieght of the stick is 120cm. The stick and the shadow can be assumed as the perpendicular and base of a right angled triangle
therefore, taking the angle of elevation as xdegree
tanx=120/50=2.4=tan 68degree
x=24degree
Similarly taking the pole as hieght and its shadow as base of a right angled triangle,
height of pole=82*tan 68degree=196.8cm=1.96m
Please check others answers I might be wrong.