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Pi has many usages in mathematics some of which are:-

Area of a circle = pi*radius squared

Circumference of a circle = diameter*pi or 2*pi*radius

Surface area of a sphere = 4*pi*radius squared

Volume of a sphere = 4/3*pi*radius cubed

Volume of a cone = 1/3*pi*radius squared*height

The value of pi is found by dividing the circumference of a circle by its diameter

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Q: What Pi used for?

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Pi can be used to find a circle, For the circumference-Pi x D, or for the radius Pi x r2

Pi was first used by the Babylonians and Egyptians.

Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle

3.14159265 That Pi? Many people use Pi. I use Pi in my math class.

It is used to find the area of a circle as pi*radius2

When was pi first being used approximated?

Pi is used to find area and circumference of a circle.

well pi is used to find the area of a circle A=pi x the radius squared

eating, plus:circumference = pi x diameter

The first time the symbol Pi was first used for Pi was in ancient Greece in their numbers. The symbol "π" was number 80 in Greece.

Pythagoras was the 1st person who used the pi symbol first

No, pi is not used to solve a square root problem.

The approximate value of pi used by the ancient Egyptians was 3.16

3.141592654

the way to use pi is to find the circuference of a circle

pi=3.14159265 but is most commonly used as 3.14

pi times diameter = circumference

Pi is used to find the area and perimeter of a circle and the volume of a sphere, cylinder, and cone. Pi=3.14159265358979323846264338327950288419716939937510582097494459230781640628620899862803482534211706798214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196... That was 200 decimal places of Pi.

William Jones first used the pi symbol (π) in 1706

Pi (3.141...) is used for circles, and circles only. You use it to find the area and circumfrence.

yes pi is used around the world today

Pi has undoubtedly contributed to math. Pi can be used for calculating circles and was used to measure distances without doing it the harder way....

Circumference of any circle = 2*pi*radius or pi*diameter

Pi is 3.14159265415.... and so on and so forth. Pi is more commonly used as 3.14 in equations.

Einstein may have used pi (Ï€)in his equations but he had no involvement in the creation or application of pi.