What's the lateral area of a right circular cone if the diameter of the base is 4 m and the slant height of the cone is 15m? Round your answer to the nearest whole number.
The formula for the lateral surface area of a right circular cone is: [tex] \pi rl[/tex] where r is the radius of the base, and l is the slant height. Plugging in the values we get: [tex]Lateral\ area= \pi \times \frac{4}{2} \times15\ m^{2} [/tex]
