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the fraction 22/7 is often used as an approximation for the value of pi. it is off from the actual value by about 0.04 percent (1 in 2500).
This would be like measuring a football field and being off by about 1.5 inches on your measurement.
The fraction 355/113 is amazingly close, better than 1 part in 10 million
What else can I help you with?
What is the relationship between circumference and pi?
In any circle, the product of pi and the diameter will be the circumference. That is because pi is the ratio of the diameter of a circle to its circumference. Here is the equation: c = pi x d
Find the Circumference 2 x 3.14 x r?
The formula for the circumference of a circle is given by ( C = 2 \pi r ), where ( \pi ) is approximately 3.14 and ( r ) is the radius of the circle. To find the circumference, simply multiply 2, 3.14, and the radius ( r ). For example, if the radius is 5, the circumference would be ( C = 2 \times 3.14 \times 5 = 31.4 ).
What is the formula for finding the radius?
The formula for finding the radius of a circle is circumference divided by double of pi. If area is given instead of circumference, the radius may be found by dividing the area by pi, then finding the square root of the resultant quotient. It is also equal to half of the diameter, or the diameter divided by 2.
The formula for the volume of a sphere?
2 pi r times the circumference sqaured. then take this and find out its square root. This however, only works if you have the circumference. If you have both the volume and the height, you can find the formula for the radius by solving the following literal equation for "r": V=1/3 r^2(3.14)(H) r=(3V/pi H)square root
What is the equation to find how fast the earth travels around the sun?
The equation would be the distance traveled divided by the time. So the radius of the Earth's orbit is about 93 million miles, and the formula to calculate the circumference of a circle is 2*pi*radius. The Earth's orbit is not a circle but an ellipse; however, the eccentricity (amount of difference between the ellipse and a perfect circle) is quite small. The time of the orbit is 356.24 days times 24 hours, or 8766 hours. (Rounded off, because I'm using round numbers for the radius and blowing off the eccentricity of the orbit). I'll round off the irrational number "pi" to 3.1412, because it would be irrational to use anything more precise, since the radius is approximate, too. So 584,263,200 miles / 8,766 hours = 66,650 miles per hour. Approximately.
How do you find a circumference of a circle if the radius is a fraction?
The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.The circumference is 2*pi*radius. It does not matter if the radius is an integer or a fraction.
What fraction of a circumference equals the radius?
2r(pi)=C where C is circumference. Therefore the radius equals C/2(pi)
Where was pi found?
The value of pi is found by dividing the circumference of a circle by its diameter and pi is an irrational number which means it can not be expressed as a fraction.
What is the formula for pi?
Pi is a number. You get pi when you divide the circumference of a circle by it's radius. 22/7=3.14 is the closest fraction.
How do you epress the circumference as a mixed numberin simplest form?
The circumference of a circle is equal to the diameter times pi. The number pi CAN NOT be expressed exactly as a fraction, or as a decimal. Common approximations are 3.14 in decimal, or 22/7 as a fraction.
Is the radius one fourth of the circumference?
No. It is circumference/(2*pi)No. It is circumference/(2*pi)No. It is circumference/(2*pi)No. It is circumference/(2*pi)
How can you solve the circumference of a circle if pi has been used as a fraction?
You can either 1)You can divide out the fraction used for pi then multiply by the diameter or 2)Put the diameter over 1 then multiply across with the fraction used for pi.
How do you find the circumference of a circle when the raduis is a fraction?
The circumference is 2*pi*radius (not raduis) and this formula is applicable whether the radius is an integer, a fraction, or even an irrational number.
Where did they do the calculation of pi?
The circumference of a circle when divided by its diameter is the value of pi which is an irrational number that can't be expressed as an exact fraction.
The diameter of a circle can be divided into the circumference how many times?
The diameter of a circle can be divided into the circumference of a circle pi times. The number pi is about 3.14 in decimal form. Because pi is an irrational number, it cannot be written as a fraction of integers or as a terminal or repeating decimal. The circumference of a circle is said to be pi times the diameter, so by dividing the diameter into the circumference, we would get pi as a quotient.
How do you use 12 over 7 as circumference if diameter is 49?
It seems like there's an error in your question. Circumference (of a circle) = pi * diameter. You can approximate pi with the fraction 22/7, then Circumference = (22/7)*49 = 154
What is the circumference of the circle in terms of pi?
pi = circumference/diameter circumference = pi*diameter or 2*pi*radius
