a steamroller with a 3 foot diameter and a 6 foot width makes 20 revolutions. how much ground area does it pave
+10 To answer this, you must find the surface area of the roller using 2 * pi * r * h + 2 * pi * r2, so we plug in 2 * pi * 1.5 * 6 + 2 * pi * 1.52. This gives us 70.6858347057703479, which we will round to 70.69 square feet. We then multiply this by twenty since it revolves twenty times, which gives us approximately 1,413.72 square feet.
