You're Mum A Frustum
Your mum got a volume of ((pi x radius of big come squared x height of big cone) divided by 3)-((pi x radius of small cone squared x height of small cone) divided by 3)
Your mum got a volume of ((pi x radius of big come squared x height of big cone) divided by 3)-((pi x radius of small cone squared x height of small cone) divided by 3)