The formula for calculating the volume of a cylinder is π · r^2 · h. We can replace the numbers, like this: 3.14 · (17)17· 38. 17 times 17 is 289, so 3.14 · 289 · 38. 289 times 38 is 10,982, so 3.14 · 10,982. 3.14 times 10,982 is 34,483.48, so the volume of the cylinder is 34,483.48.