ind the height h h if the volume is 15.7 15.7 cubic feet, the radius is 5 5 and π π is 3.14 3.14 .

Question

The volume of a cylinder is given by the formula V=πr2hV=πr2h. Find the height hh if the volume is 15.715.7 cubic feet, the radius is 55 and ππ is 3.143.14.

The height, hh, is

Answer 1

h = V/pi(r)^2 = 15.7/(3.14)(55)^2 = 15.7/9498.5 = about 1.6 x 10^-3= 0.0016 feet = about 0.02 inches = 0.05 cm = 1/2 mm

that's a very very short flat "cylinder"

maybe you meant 5.5, not 55 as the radius?

then h= 15.7/3.14(5.5)^2 = 15.7/94.985 = about 1.6 x 10^-1 = 0.16 feet = about 2 inches. Still a fairly short flat "cylinder"