3. With a digital caliper you measure the height of a metal cylinder to be 2.71 cm. You use micrometer calipers to measure the diameter of the cylinder and obtain the value 11.68 mm. Give your answers to the following questions to the correct number of significant figures. a. What is the ratio of the cylinder's radius to its height? b. What is the volume of the cylinder in units of meters? (V = rh)