Three metallic spheres of radii 10 cm, 8 cm and 6 cm, respectively, are melted to form a single solid cone of radius 12 cm. Find the curved surface area of the cone, correct to two places of decimal. (take $$ \pi = 3.14$$)

A

1664.50 $$cm^{2}$$

B

1669.86 $$cm^{2}$$

C

1876.79 $$cm^{2}$$

D

1864.41 $$cm^{2}$$