Pi is the ratio of the circumference to the diameter of any given circle. This turns out to be a very important ratio, which appears in a great many different mathematical formulae. Lots of situations in the universe involve circles, directly or indirectly, and they will therefore tend to involve the number pi.
What is the relationship between the circumference and the diameter? Answer The circumference divided by pi gives the diameter. d = C / pi An alternate way to express the above answer. For all circles, pi is the ratio of the circumference to the diameter pi = C / d
Pi (3.141...) is used for circles, and circles only. You use it to find the area and circumfrence.
There are two kinds of ratios. One is the ratio of a circle, which is half the circle's diameter, (which is the length of the circle across), which can be used to find the circles area. (the ratio squared multiplied by pi). The other ratio is something that looks like this 1:2 which work similar to fractions. Such as, for every one ____ there are two ___.
There are no degrees in pi, it is a ratio.
The ratio of the circumference of a circle to its diameter is Pi. (3.14159)
Yes, pi.
Pi comes up endlessly in mathematics, it is associated with a great many things other than circles. Of course, it is still true that pi by definition is the ratio of the circumference to the diameter of a circle.
Pi is a number that is never ending, but most people only use the first couple of digits. pi = 3.14159265 pi is the ratio of a circles' diameter to its circumference
Pi is the ratio of a (perfect) circle's circumference to its diameter. It was, and still is, used to make more accurate measurements of things containing circles or parts of circles. Pi also shows up in trigonometry and higher maths.
The Greek word for perimeter begins with the letter pi, and since circumference and perimeter are the same the letter Pi was used.
diameter ------------- Diameter. The R (radius) of a circle multiplied by two equals the diameter.
One definition of pi is the ratio of the circumference, C, of a circle to its diameter.,d. pi=C/d The area of a circle is (pi)r2 or (pi)d2/4 where r is the radius.
Pi is the ratio of the circumference (the length going around the outside of the circle) to its diameter (the length going across the circle and through the center). Pi is constant for all circles.
No, pi is a ratio, often simplified as 22/7, used to calculate areas of circles, etc.So, the area of a circle is pi times r2, where r = the radius of the circle.
3.14 is a constant . It has no surface area. It is an approximation for pi = 3.141592.... 'pi' is the ratio between a circles circumference and its diameter. C = pi*d
The number pi is the ratio of the circumference and the diameter of a circle. In Euclidian ("flat") geometry, this ratio is the same for all circles. The number pi is approximately 3.1416. It also has many other uses in mathematics and physics, not all of which have an obvious relation to a circle or sphere.