The volume of a right circular cone is 1232 cm$$^3$$ and its height is 24 cm. What is its curved surface area?
(Take $$\pi = \frac{22}{7}$$)
volume of cone = $$\frac{1}{3}\times \pi\times r^2\times h$$
1232 = $$\frac{1}{3}\times \pi \times r^2\times 24$$
r= 7 cm
Curved surface area of cone =$$\pi \times r \times l $$
L = $$\sqrt{r^2 +h^2}$$
 = 25 cm
Curved surface area of cone =$$\pi \times 7\times 25$$
   = 550 $$cm^2$$
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