Use matlab to write a user defined function to solve the problem

A paper cup is designed to have a geometry of a frustum of a cone. Write a user-defined function that determines the volume and the surface area (side plus bottom) of the cup for given values of r, R, and h. For the function name and arguments, use [V, S] = VolSArea (r, R, h). The input arguments r, R, and h are the radius of the base, the radius of the top and the height, respectively (all in units of inches). The output arguments V and S are the volume (in units of U.S. fluid ounce) and the surface area (in units of in.^2), respectively. Use the function to determine the volume and the surface area of cups with the following dimensions: (a) r = 2 in., R = 3.5 in., h = 4.25 in. (b) r = 2.5in., R = 3.5 in., h 4.5 in