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First of all, 'pi' is not a formula. It's a number.
Next, the number can never be written exactly correctly with digits, no matter how far
the decimal is carried out. That's why a symbol was invented to represent it.
'3.14' is a rough approximation for 'pi'. It's about 0.05% too small.
Many people use '22/7' for 'pi'. That's about 0.04% too big.
3.142 is better.
3.1416 is even better.
3.14159 is even better.
3.1415927 is even better.
3.1416592653589792 is even better.
'Pi' is just a characteristic of the thing we call a 'circle'. There's no 'why' pi is that
number. It's like asking why water feels runny, or why air doesn't smell.
Wiki User
∙ 13y ago
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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
What is the formula for finding a radius of a cylinder?
times the width times pi(3.14) like if your width was 6inches you do it like this 314 6 ____ 1,884
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
Who invented the formula of pi?
There is no formula for Pi, it cannot be represented by any formula. It is a fundamental constant.
What is the arcatangent formula for Pi?
There is only one formula for pi, which is the ratio of the circumference to the diameter of a circle.
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
What is the diameter of a circle if the circumference 314 feet?
Diameter = 314/pi feet
What is the formula for finding a radius of a cylinder?
times the width times pi(3.14) like if your width was 6inches you do it like this 314 6 ____ 1,884
Who made pi day on 314?
Larry Shaw made pi day on 3, 14, 1989.
If the area of a circle is 314 square inches what is the circumference of the circle?
62.8 inches. the formula for a circle's area is a = pi x r squared. substitute 3.14 for pi and 314 for a. 314 = 3.14 x r squared (divide both sides by 3.14) v 100 = r squared (find the square root of both sides) v r = positive or negative 10 . since it stands for the radius of a circle, it has to be positive. now that you know the circle's radius, you can solve the circumference formula, c = 2 x pi x r. c = 2 x 3.14 x 10 c = 62.8
Circumference of a circle with a diameter of 100 feet?
100*pi≈314 feet
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
Who invented the formula of pi?
There is no formula for Pi, it cannot be represented by any formula. It is a fundamental constant.
What is the area of a circle with the circumference of 62.8 inches?
Circumference = 2 pi r = 62.8 so r = 31.4/pi = 10 Area = pi r2 = 100 pi = 314 in2
What is the circumference of a circle with a radius of 8 feet?
use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi
What is circumference of a circle with a radius of 8 feet?
use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi use the formula 2(pi)r=16pi
What is the arcatangent formula for Pi?
There is only one formula for pi, which is the ratio of the circumference to the diameter of a circle.
