If the diameter is 8.4 m and the height is 9.3 m, then:
Surface Area: 2πr2 + 2πrh Volume: πr2h
Make the height the subject of the fornula for the volume or surface area of the cylinder
By dividing its cross-section area into its volume
V=Pi*R2*H
use algebra to find the radius, then plug the height and radius into the surface area equation
Surface Area: 2πr2 + 2πrh Volume: πr2h
Make the height the subject of the fornula for the volume or surface area of the cylinder
By dividing its cross-section area into its volume
V=Pi*R2*H
In order to find its height, we must know either the volume or the surface area of the cylinder.
use algebra to find the radius, then plug the height and radius into the surface area equation
What do you mean by "exact measurement"? Do you wish to determine the cylinder's height? Its diameter? Its surface area? Its volume?
You cant find it unless you know another value like the volume or surface area.
Actually, answer 1 is for the volume, not the surface area. Aside from that, there are lots of ways to bore a hole in a cylinder. If it goes from one base (a flat face) to the other (or part of the way) parallel to the axis, answer 1 is correct (for the volume). If it is not parallel to the axis, or if it is bored from the curved surface of the cylinder, it is much more complicated. Assuming, as in answer 1, that the hole goes all the way from one base to the other parallel to the axis, to get the surface area you would add the surface area of the outer cylinder to that of the hole (just the curved surface portion), and then subtract the areas of the circular holes in the two bases, each of which is pi x the radius of the hole squared. I'm assuming you know how to calculate the surface area of a cylinder. This is the area of the curved surface, which is 2 x pi x the radius x the height, plus 2 x the area of each base, which is pi x the radius squared. ========================================================== Use the formula:- Volume of a cylinder = Pi X Radius squared X Length , to find the volume of a solid cylinder. Repeat the same calculation with the same formula, to find the Volume of the cylinder of fresh air within the cylinder . Subtract the fresh air Volume from the Solid Cylinder Volume. That will be your answer . Think about your problem, then it is dead easy.
Volume of cylinder: base squared times length
v=l*b
Use the formula for the volume. Replace the data you know (radius and volume), and solve for the missing data (the height). Once you have this height, it is easy to use the formula for the surface area.