It can be observed that the radius of the conical part and the hemispherical part is same (i.e., 3.5 cm).

Height of hemispherical part = Radius (r) = 3.5 =7/2 cm

Height of conical part (h) = 15.5 −3.5 = 12 cm

Slant height(l) of conical part =

Total surface area of toy = CSA of conical part + CSA of hemispherical part

*πrl + 2*π r^{2}