Find the curved surface area of right circular cone whose

- Find the curved surface area of right circular cone whose slant height is 10 cm and radius is 7 cm
- Find the curved surface area of right circular cone whose slant height is 10 and base radius is 7
- Find the curved surface area of right circular cone whose height is 15 cm and base radius is 8 cm
- Find the winner of the circular game leetcode