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Who invented the formula for finding The circumference of a Circle?
Archimedes, a famous Greek mathematician, born about 287 B.C.
What is the letter which represents the ratio of the circumfernce to the diameter of a circle?
The letter or character used to represent the ratio of the circumference to the diameter of a circle is the Greek lower case letter π, called "pi."
Where is pi from?
Pi is the never ending, never repeating number. It was created my a Greek mathematician and the estimate for pi is 3.14 but some more digits are: 3.1415926535897932384626433832795028841971693993751058209749445 Pi is the circumference of a circle with a diameter of 1.
Why is pi used to measure circles?
Pi is the ratio of the circumference ( the perimeter) of a circle to its diameter. You might have learned in school that if C is the circumference of the circle., then C=2Pir or C=pixd from which we say pi = C/d or the ratio of the circumference of the circle to its diameter. This has been known since ancient times! William Jones gave us the symbol we currently use for it. This comes from the 16th letter in the Greek alphabet. So we use it to measure circles because of what it is.
What is the circumference of a circle with 3.14 used instead of pi?
You appear to misunderstand!!! pi = 3.14 C = 23.14r (radius). However, if the radius is also 3.14 , then C = * 3.14 * 3.14 = 19.7192 units.
