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 ratio of C to D will equal pi. This is based on the known formula for the circumference of a circle. D = Diameter of the circular base of a cylinder (independent) C = Circumference of the circular base of a cylinder (dependent)