Section 11.4: Problem 7 (1 point) Use differentials to estimate the amount of material in a closed cylindrical can that is 50 cm high and 20 cm in diameter if the metal in the top and bottom is 0.1 cm thick, and the metal in the sides is 0.05 cm thick. Note, you are approximative the volume of metal which makes up the can (i.e. melt the can into a blob and measure its volume), not the volume it encloses. The differential for the volume is dV - dr+ dh (enter your answer in therms of r and h.) dr and dh (be careful) The approximate volume of material is cm3