Cylinder Homework?

Question

Ok i need help finding the volume and surface area of these cylinders i will state the height first then the width or diameter. First one 11.5 by 6.Second one 5.5 by 3. Third one 110 by 60. thanks so much

Answer 1

r squared times pi (3.14)then multiplied by the height will give you the solution to volume.
r squared times pi will give you the area of a circle. It isn't that difficult, you should be able to do it.

Answer 2

V = πhr^2 = (π/4)hd^2
S = 2(π/4)d^2 + πhd = πd(d/2 + h)
plug & chug