Answer:
Volume of cone is 400π cm³
Explanation:
Given : a right cone with base radius = 10 cm , height = 12 cm and lateral height 15.6 cm
We have to find the volume of this right cone.
Volume of cone =

Substitute , we get,
Volume of cone =

Volume of cone =

Volume of cone =

Thus, option (3) is correct.
Thus, Volume of cone is 400π cm³