Answer:
I can answer only the first two questions, the third one is not complete.
Here we will work with the volume of cylinders.
The volume of a cylinder of radius R and height H is:
V = pi*R^2*H
where pi = 3.14
first question:
We want to find the volume of a cylinder of radius R = 8 in, and height H = 16 in
Then the volume of this cylinder is:
V = 3.14*(8in)^2*16 in = 3,216.36 in^3
Second question:
Now we have a height of 4.25 in, and a diameter of 3.25 inches.
Remember that the radius is half of the diameter:
R = 3.25 in/2 = 1.625 in
Then we have:
R = 1.625 in
H = 4.25 in
Then the volume of this cylinder is:
V = 3.14*(1.625)^2*4.25 in = 35.24 in^3
