C=2•pi• R
D=6 then the radius is 3
2•Pi•3 =18.85
Answer:
C(cone with a radius of 8 units)
Explanation:
When a triangle is spun around its center, it makes a cone (can't make a cylinder because when spun, it doesn't have 2 circular bases). The radius would be 8 because that is what makes the circular base. The 6 is just the height of the triangle and cone once it is spun, it doesn't have anything to do with the base and its radius.
The line passing through it is y=7/4x-11/<span>4</span>