Final answer:
The volume of a right circular cone with a base radius of 2r and height 7h is given by the formula V = (28/3)πr²h.
Step-by-step explanation:
The volume of a right circular cone can be calculated using the formula V = (1/3)πr²h, where r is the base radius and h is the height of the cone.
In this case, the cone has a height of 7h and a base radius of 2r. So, we substitute these values into the formula to find the volume:
- Substitute 7h for h and 2r for r in the volume formula:
- Simplify the equation:
- Further simplify and rearrange the equation: