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What else can I help you with?
How is pi useful?
the way to use pi is to find the circuference of a circle
How did mathematician figured out that the formula for circumference of a circle?
The ratio of any two lines in any picture is unchanged when you change the size of the picture. In the case of a circle, the ratio of circumference to diameter is called pi simply because pi has turned out to be a useful number in many applicaions.
Why is pi a useful number?
It is used to calculate the circumference and the area of a circle, the surface area and volume of a sphere, to calculate areas and volumes of some other geometrical figures, and in several applications in advanced math that are seemingly unrelated to the circle.
What is mean by pi in mathematics?
If you mean pi as in 3.14159... I can answer. Pi is a relationship that compares the circumference of a circle to the diameter of that same circle by division. In any circle, if you divide the length of the circumference of that circle by the length of its diameter you will get 3.14159... or pi. This can be very helpful to know because it is much easier to measure the diameter of a circle than to measure the distance around the circle (circumference). If you multiply the diameter by 3.14159... you will find the circumference. If C = circumference; D = diameter; pi = 3.14159 theses are some useful formulas: C = D X 3.14159 or D = C / 3.14159 or 3.14159 = C / D
What are some formulas that pi would be useful for?
calculating the circumference of a circle, it's area, it's perimeter, its diameter, radius, it's algebraic calculations of missing circle parts.
Why is finding prime factorization of a number useful?
It helps to reduce fractions.
How does chest circumference relate to lung functions?
Chest circumference does increase when the lungs are inflated. The best way to measure circumference in its true number is to measure it without holding in air. The measurement is useful for properly fitting clothing and the like.
What is pie in circle?
Firstly the word is pi. It is a Greek letter. In mathematics it is often useful to use letters to represent something unknown. We often use the letter x or the letter n to do so. In certain special cases we keep a letter and that represents something so we all know what we are referring to. In this case, pi. Pi refers to the ratio of the diameter of a circle to its circumference. It is always the same. No matter what size the circle the diameter will always be a certain size compared to the circumference. It is often useful to keep and use such letters and phrases. It is a kind of shorthand for people that use mathematics.
What is the diameter of 19.4 km in a circle?
The answer depends on what the 19.4 km refers to: the radius, the circumference or something else. Since you have not bothered to share that crucial bit of information, I cannot provide a more useful answer.
When is it useful to know multiples of a number?
When reducing fractions to their lowest terms or finding the LCD of fractions
What does pi the formula in math stands for?
In certain formulas, including most that involve circles, you will see 'pi'. This pi always has the same value, approximately 3.14159... However, this number is irrational, which means it never terminates (ends) or repeats. But what exactly is pi? Pi is the ratio between any circle's circumference and its diameter. This ratio is always the same, no matter how big or small the circle is, but the degree of precision might vary depending on how big the circle is. Why is Pi useful? Pi allows us to calculate the diameter or area of any circle, but also has many other uses. In order to use these formulas, though, we need to define the terms we are using. Circumference - the distance around the circle Diameter - the length of a straight line segment that passes through the center of the circle Radius - the distance from the center of the circle to the circle itself To calculate the circumference, multiply the diameter by pi (3.14...) To calculate the area, square the radius, then multiply this by pi (3.14...) In symbols: Circumference = diameter x pi Area = (radius)2 x pi Hope this helped.
If the circumference of a circle is 37.68 cm then what would be the radius?
(1/2 (37.68/pi)) _____________________________________________________ The relationship of the circumference to the diameter is π (pi) The formula is... C = π D To make this more useful when you already have the circumference and want to find the diameter... D = C / π So, in this case, assuming a value of π to be 3.142 and giving an answer to the nearest two decimal places... D = 37.68 cm / 3.142 = 12.00 cm As the radius is half the diameter, the answer is 6 cm.
