It is Pi/4 x diameter squared.
That is 0.7854 x 5 x 5 = 19.635 square inches.
2.5
The area of a circle with a 5-inch diameter is: 19.63 square inches.
The area of a 5-inch circle is: 19.6 square inches.The area of a 4-inch circle is: 12.6 square inches.The area of the 5-inch circle is 55.6% larger than the 4-inch circle
force = pressure x area = 2000 x 5 = 10,000 pounds
radius squared x 3.14 = area diameter squared x 3.14 / 4 = area
The area of a 14-inch circle is: 153.9 square inches.
Is the question What is the AREA of a 5 inch by 7 inch photograph? The area of the photograph is 5 x 7 = 35 square inches. But if you are asking how much surface area does a 5 inch by 7 inch photograph have, you have to consider the area of both the front and the back of the photograph or 70 square inches.
The area of a circle with a 5-inch diameter is: 19.63 square inches.
25 units squared
Assume a small piston (one square inch area) applies a weight of 1 lbs. to a confined hydraulic fluid. That provides a pressure of 1 lbs. per square inch throughout the fluid. If another larger piston with an area of 10 square inches is in contact with the fluid, that piston will feel a force of 1 lbs/square inch x 10 square inches = 10 lbs. So we can apply 1 lbs. to the small piston and get 10 lbs.
19.63 square inches are in the area of a 5-inch diameter circle.
The area of a 5-inch circle is: 19.6 square inches.The area of a 4-inch circle is: 12.6 square inches.The area of the 5-inch circle is 55.6% larger than the 4-inch circle
-1
One use of hydraulics: we can use a small force to lift heavy objects. For example in a closed hydraulic system, if one piston has a surface area of 1 square inch, applying 10 pounds of force to this piston adds 10 psi (pounds per square inch) pressure to the system. Since pressure is the same throughout the system, then the other piston also has 10 pounds per square inch. If the surface area of that piston is 10 square inches, then each square inch has the same 10 psi, so the total force on the larger piston is 100 pounds. You do not get something for nothing, though. The volume of this system is constant, so if you want the larger piston to move 1 inch (that's 1 inch times 10 square inches = 10 cubic inches), then the small piston must move 10 inches (10 inches times 1 square inch = 10 cubic inches). This makes us think that doing something useful, like lifting a car 5 or 6 feet off the ground, so that we can work under it, seems impractical. A power assisted hydraulic system uses a pump to increase the pressure, rather than a simple piston.
.002 of an inch
(3.141*5)^2
Because liquids can't be compressed - only pressurized. With a liquid, whatever force you put in at one end is what you get out at the other providing the piston connected to your break pedal is the same size as the one on the break assembly. If you press down with a force of 10 lbs. on a piston with an area of 1 sq inch (10 lbs/sq inch) and connect it to a piston with an area of 100 sq. inches, the resultant force will be 1000 pounds of pressure.
In a hydraulic system, the force on the applying piston is multiplied by the reciprocal of the area of the piston, to find pressure which is multiplied by the piston area.