Answer :
From the drawn figure, we have
Base radius, r = 3.5 cm
Height of the cone, h = 15.5 – 3.5
= 12 cm
We know that, Slant height of the cone,
= 12.5 cm
We also know that Inner surface area of the toy = Curved surface area of cone + Curved surface area of hemisphere
= 214.5 cm2
Hence, the total surface area of the toy is 214.5 cm2
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