1. The problem statement, all variables and given/known data In England, you can purchase fish and chips for a reasonable price. The reason it is so reasonable is because they give you no silverware, nor a plate. They just roll up a piece of paper in a cone and toss your food in. The vendors need to roll the cone in a perfect size, not too fat nor too skinny. Find out how to optimize the volume of the cone. For modeling purposes, assume that the piece of paper is a circle of radius 5 inches, and that we are cutting a wedge out of it whose central angle is Θ. Find the maximum volume of this cone. 2. Relevant equations A = 2πr i need to find out a formula to subtract the cut out wedge of the circle from the rest of the circle. 3. The attempt at a solution I am stuck trying to find a main formula. I would think that after i get that formula, i find the derivative and then set it equal to zero, and solve.