Divide the surface area by the circumference of the circle, which is a product of the diameter x Pi. Essentially, an unrolled cylinder is a rectangle.
The answer depends on what information you are given: volume and radius or diameter, or surface area and radius, etc.
Make the height the subject of the fornula for the volume or surface area of the cylinder
Entire surface area of a cylinder = (2*pi*radius^2)+(circumference*height) If you are given the circumference then radius = circumference/2*pi
The surface area of a cylinder is given by the formula 2πr(r+h), where r is the radius and h is the height. In this case, the radius is half the diameter, so it is 4 inches. Thus, the surface area of this cylinder is 2π(4)(4+5) = 2π(4)(9) = 2π(36) ≈ 226.195 square inches.
Easy, you find the area of the circle (Pi X Radius squared) and then multiply it by the height. Your question asks about using the diameter...the radius is half of the diameter.
That will depend on its height which has not been given
The answer depends on what information you are given: volume and radius or diameter, or surface area and radius, etc.
height has to be given. or volume. volume of a cylinder is v = (pi r ^2) h or diameter times height.
half the diameter and then get the radius times pi and square it
Make the height the subject of the fornula for the volume or surface area of the cylinder
The radius IS given, since height of hemisphere = radius of hemisphere!
Entire surface area of a cylinder = (2*pi*radius^2)+(circumference*height) If you are given the circumference then radius = circumference/2*pi
The surface area of a cylinder is given by the formula 2πr(r+h), where r is the radius and h is the height. In this case, the radius is half the diameter, so it is 4 inches. Thus, the surface area of this cylinder is 2π(4)(4+5) = 2π(4)(9) = 2π(36) ≈ 226.195 square inches.
Height cannot be calculated from the information given.
Easy, you find the area of the circle (Pi X Radius squared) and then multiply it by the height. Your question asks about using the diameter...the radius is half of the diameter.
The answer depends on what information you are given: volume and height, or surface area and height, etc.
For a circle the diameter can be found by dividing the circumference by pi. Once the diameter is found by squaring the radius multiplied by pi. For a cylinder follow the previous method and multiply the answer by two. Multiply the circumference of the circle by the cylinder height. Add the two answers together.