How can I use a while loop in Matlab to answer this?

2. Many heat exchangers use fins to increase surface area and improve heat transfer. In one particular design, each plate of a heat exchanger is packed with 18 conical frustrums, as shown in the diagram below. The radius of the bottom of each fin (R1) is fixed at 0.75 in. and the height of each fin (h) is fixed at 1.25 in. However, manufacturing allows the radius of the top of each fin (R2) to vary to provide the necessary surface area for a particular heat transfer application. Side View Top View Given that the surface area (SA) of a single conical frustrum is given by use a while loop to determine the minimum value of R2 needed for the fins to provide a total surface area of at least 95 in2 per plate, excluding the exposed plate area. 3. The volume (V) of liquid in a horizontal cylindrical tank with a radius r and length L is calculated as a function of the height of liquid (h) as shown below use a while loop to determine the maximum height of liquid in a tank with r = 3.0 m and L = 8.0 m if the volume cannot exceed 90% of the total available tank volume. Note that in Matlab cos-1 is calculated by the function acos0)