9.42 inches
No!
It should be an infinitesimally small fraction, since a circumference is a curve and the base of a parallelogram is a straight line.
The base has a circumference of 93 miles
9.42 inches
9.4 kms at its circumference
A cone does not really have a base but if you find the circumference of the bottom that is the base.
base by circumference = area
take the circumference of the base times the height
C = 2 pi r
Nelson's Column, located in Trafalgar Square, London, has a base that measures approximately 40 feet (12 meters) square. To find the circumference of the column's base, you would use the formula for the circumference of a square, which is 4 times the length of one side. Therefore, the circumference would be about 160 feet (or 48.8 meters).
Find the radius by dividing the circumference by 2pi then find the area of the base and multiply it by the height
The circumference of a lampshade can be calculated using the formula ( C = 2\pi r ), where ( r ) is the radius of the lampshade's base. If you know the diameter, you can also use ( C = \pi d ), where ( d ) is the diameter. To find the circumference, measure the base's radius or diameter and apply the appropriate formula.