It is approx 0.003068 square inches.
0.0031
diameter X pi = circumference circumference X height = area
When dealing with pipe the volume is more important, therefore, I would use the inside diameter.
In order to answer the question, its height is also required.
The area of a circle with a diameter of 9.4 m is: 69.4 m2
It depends on the shape of the area. If it is a circle with an area of 4,300 acres, the diameter of the circle would be 15,440 feet.
0.0031
diameter X pi = circumference circumference X height = area
When dealing with pipe the volume is more important, therefore, I would use the inside diameter.
By deviding the multification of line pressure and screw dia with the crosssectional area of hydralic cylinder piston.
0.3344 square inch
Generally, the heat transfer area of reference is considered to be the outside surface area of the tube. Therefore, figure the outside diameter of the tube to get the heat transfer area.
It is approx 0.003068 square inches.
In order to answer the question, its height is also required.
To find area of a circle using diameter, you use this formuler. Area=pi(diameter/2)(diameter/2)
area = pi*radius2Remember, to half the diameter to get the radius.Get the area of the outside circle, and the area of the inside circle, then take the inside area from the outside.I think it would be more helpful to you not to give you the answer. Work it out from this. If you are wondering what pi is, it is 3.14159
Not clear which area you want. The surface area of the cylinder can only be determined if you give the length of the cylinder as well as its diameter. As you don't give this I conclude you want the area of the ends only. Each end will be the difference between the area of the 100 mm circle and the 30 mm circle. 100 mm diameter area = 7855 sq mm. 30 mm diameter area = 707 sq mm. Therefore area of end = 7148 sq mm, and you have two ends so total = 14296 sq mm