1. The problem statement, all variables and given/known data A cone is circumscribed around a sphere. The radius of the sphere is 5 units. Write the volume of the cone in terms of x. There is a diagram.. I will try to describe it: It is a cross section of the object (sphere in cone). From the center of the circle to the bottom left vertice of the triangle is length 5 + x. (5 is the radius, x is the rest of the line). 2. Relevant equations 3. The attempt at a solution So I can get r of the cone with Pythagoras = sqrt((x + 5)^2 - 25). The height would be 10 + something. I'm not sure how the missing part of the height relates to x.