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# Who discovered Pi?

# Who discovered the pi?

Archimedes did sometime between 287-212 BC.

# How was pi discovered?

The early history of N (pi) from textual sources roughly parallels the development of mathematics as a whole . Early evidence points toward use of an approximation for the… length of 'circumference' with respect to its 'radius' (~ 3 1/7) in the designs of the pyramids in Egypt. The Great Pyramid (2500 BC) was built with a perimeter of 1760 royal cubits (1 royal cubit ~ 20.64 inches or 525 mm) and a height of 280 cubits; the ratio 1760/280 ~ 2Ï ~ 6.29. (N ~ 3.14) Pi was discovered by the Greeks by a process called exhaustion. They observed that any polygon could be divided into triangles whose areas could be combined to get the area of the shape, so they tried the same thing with circles. They then factored in the radius of the circle, and they found pi. These triangles can theoretically get infinitely smaller, which is why pi is an irrational number.

# How did Archimedes discover pi?

Archimedes found a method for finding good approximations to the ration of the circumference of a circle to the diameter. He did this by inscribing polygons inside the circle …and finding how the perimeter changes when the number of sides is doubled. Archimedes came up with an approximation that is equivalent to saying that pi is between 3 1/7 and 3 10/71. This is quite far from being as accurate as what you showed.

# Why was pi discovered?

So Marie Callendar's would have something to sell, NO SERIOUSLY! The Egyptians used an approximation of Pi in the 20th century B.C. and probably used it for construction and b…uilding. It is often important to know the circumference of a circle and it is Pi times its diameter. They may have been the first to discover it. A century later, the Babylonians used Pi. As time passed, the approximation they used improved.

# What is Pi and who invented or discovered Pi?

Pi is the relationship between the diameter and the circumference of a circle.

# Who Discover pi?

Pi was discover by James Gregory.

# Where was pi discovered?

Pi was discovered ny the ancient Greeks around 1900 B.C

# Who discovered pi first?

It is not known exactly who first discovered Pi. It has been usedfor over 4,000 years and dates back to the times of ancientEgyptians.

# Who discovered the concept of pi?

The concept of pi has been known by mathematicians for thousands of years whereas the circumference of a circle divided by its diameter is about 22/7. However, the exact valu…e of pi has never been discovered because it is an irrational number whose decimal places go on for ever and ever.

# Who was the person who discovered pi?

alice troop

# How was pi discovered as 3.14?

Well pi was first discovered in a lab when people ate pie lol

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# How do you discover pi?

First draw a circle using a compass. Now, use a piece of string to help measure the circumference of the circle. Now measure the diameter of the circle. To discover Pi divid…e the circumference by the diameter.

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# Who discovered pi in maths?

Historically, Ancient Egyptians are the first who introduced a reasonably accurate value for the ratio of the circle area and its square radius. They used an approximate value… of 3.1605 for pi The ancient Babylonians generally calculated the area of a circle by taking 3 times the square of its radius (=3), but one Old Babylonian tablet (from ca. 1900-1680 BD) indicates a value of 3.125 for pi. The first theoretical calculation of a value of pi was that of Archimedes of Syracuse (287-212 BD), one of the most brilliant mathematicians of the ancient world. Archimedes worked out that 223/71 < pi < 22/7 The Greek letter Ï (pi) was adopted for the number from the Greek word for perimeter "ÏÎµÏÎ¯Î¼ÎµÏÏÎ¿Ï", first by William Jones in 1707, and later popularized by Leonhard Euler in 1737. The constant is occasionally also referred to as the circular constant or Archimedes' constant.

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In Math History

# Who discovered pi and when?

Pi wasn't invented so much as discovered. Pi is the ratio of a circle's circumference divided by the diameter. One could say that no one invented it, but that it was discovere…d. The Egyptians and the Greeks had an a approximation that we are still refining to this day. It is a transcendental (non-rational) number.

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# Who discovered pi is irrational no?

It was known from ancient times that pi is irrational. However, that fact was proven in 1761 by the Swiss scientist Johann Heinrich Lambert.

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# Who discovered pi and screamed eureka?

Archimedes was the first to discover it accurately but pi was around in the time of early egyptians and mesopotamians...so pi has been around for a long time Archimedes did,… one day while he was in the bath tub. The sudden realization made him so excited that he ran down the hall yelling "Come here, Watson, I want you !" Eventually he reached the kitchen, where the door slammed behind him, and an apple fell on his head, stunning him temporarily. Realizing the gravity of his situation, he reached for the key dangling from the wall by a string, but it gave him such an electric shock that he ran back out of the kitchen and up to the bath chamber to fetch his robe. His heart pounding now, he sank onto his bed, marveling and exclaiming "What hath god wrought!" at the wonder of it all, and as he tried to relax and to calm himself, he muttered to himself in a soothing tone, "We have nothing to fear but ... fear itself."