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I'm not sure of the proof. Wikipedia has an extensive article on pi, it's history and calculation methods. Pi is the ratio of a circle's circumference to its diameter. It is an irrational number, so it cannot be represented exactly as a decimal or a fraction, but only carried out to a decimal approximation.
The decimal 3.14 is a pretty good approximation to the true value. If you take a circle with a diameter of 100 yards (the length of a football field), then calculate the circumference using the approximation of 3.14, you will be off from the actual length of the circumference by about 5 3/4 inches. Using another popular approximation [22/7] will get you within 4 9/16 inch of the actual circumference. Using the popular approximation of 3.1416 will arrive at a calculation which is within 1/32 inch of the actual circumference.
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If the diameterof a circle is 10cm what is the circumference?
10 pi or 314.someting something 10 pi or 314.someting something 10 pi or 314.someting something
How do you find the square feet of a circle with a radius of 10 feet?
314 feet²Area of a circle = pi x radius²let pi = 3.14A = 3.14 x 10²A = 3.14 x 100A = 314 feet²
What is the circumference of a circle with a diameter equaling with 7 centimeters in length use 314 for pi?
If you mean 3.14 for pi then the circumference is: 7*3.14 = 21.98 cm
What is the area of a 10ft circle?
A= pi r squared 3.14 * 10 *10 = 314 square feet.
What is circumference of the universe?
There are many things man can not prove. This is one of them.
