Which of the following describes how Eratosthenes discovered the approximate circumference of the earth
Archimedes
Archimedes created the formula for measuring the circumference of a circle he used many-sided polygons, both inside and out to approximate it.
The ancient Greek mathematician Pythagoras is usually creditted for the discovery of the ratio of circumference to radius of circles. That is, Circumference = 2 * Pi * Radius. The number Pi represents (3.1415....) is named after him.
The Egyptians
Pi is the relationship between the diameter and the circumference of a circle.
Eratosthenes was the first to measure the Earth's circumference pretty acurately.
Pi is the value of a circle's circumference divided by its diameter and its true value has never been discovered because it is an irrational number
Pythagoras was credited with discovering the relationship of a radius with a circumference. Hence the term Pi (Pye).
It wasn't because even today no one has ever discovered the exact value of pi and all we know is that its value is that of a circle's circumference divided by its diameter which is an irrational number.
Pi was not invented but it was discovered by ancient mathematicians that the circumference of any circle when divided by its diameter is always equal to pi.
Pi wasn't created; it was discovered as a constant proportional value between the radius and circumference of a circle