The radius of a cone is $15 \, cm$ and its slant height is $25 \, cm$. Find the curved surface area and the total surface area of the cone. $(\pi = 3.14)$

(N/A) For a cone:
Radius $(r) = 15 \, cm$ and slant height $(l) = 25 \, cm$.
Curved surface area of a cone:
$= \pi r l$
$= 3.14 \times 15 \times 25 \, cm^2$
$= 1177.5 \, cm^2$
Total surface area of a cone:
$= \pi r(l + r)$
$= 3.14 \times 15 \times (25 + 15) \, cm^2$
$= 3.14 \times 15 \times 40 \, cm^2$
$= 1884 \, cm^2$