The height of a right circular cone is 24 cm and its slant height is 25 cm. What is the curved surface area of the cone?
(Use $$\pi = \frac{22}{7}$$)

A

528 $$cm^{2}$$

B

550 $$cm^{2}$$

C

648 $$cm^{2}$$

D

548 $$cm^{2}$$