The section of a solid right circular cone by a plane containing vertex and perpendicular to base is an equilateral triangle of side 14 cm . What is the volume of the cone? \(\left(\pi=\frac{22}{7}\right)\)
1
\(1078 \sqrt{3}\) cubic cm
2
\(\frac{1078}{\sqrt{3}}\) cubic cm
3
\(539 \sqrt{3}\) cubic cm
4
\(\frac{539}{\sqrt{3}}\) cubic cm