Pi is related to the area of a circle because it just is. It is closely related to it in math, and to find the circumference (PI 3.14), you must know the area or the diameter.
There is no direct ratio. The area is related to the square of the radius by the factor "pi." A = (pi) r2 (Pi is about 3.1416)
Area of any circle = pi*radius2
Pi (approximately 3.14) is the ratio of the circumference of a circle to its diameter. It is calculated by circumference divided by diameter.
The formula for area of a circle is radius squared times pi. The formula for volume of a cylinder is radius squared times pi times height.
Pi is related to the area of a circle because it just is. It is closely related to it in math, and to find the circumference (PI 3.14), you must know the area or the diameter.
There is no direct ratio. The area is related to the square of the radius by the factor "pi." A = (pi) r2 (Pi is about 3.1416)
Area of any circle = pi*radius2
Pi is related to the area and the circumference of the circle. The area is Pi multiplied by the radius of the circle squared and the circumference is Pi times the diameter of the circle. if you're wondering how it works, pi is the area of a circle with radius of 1 (unit), and the circumference of a circle with a radius of ½ (unit).
If cylinder radius and cylinder length are known : (pi = 3.141592654 . . . ) > Surface area = ( (2 * pi * radius) * length )
They both use pi to determine their values
Pi (approximately 3.14) is the ratio of the circumference of a circle to its diameter. It is calculated by circumference divided by diameter.
It is used to work out the area of a circle by using the formula πr2 and the circumference (Perimeter) πd. πr2 - Area: Pi x Radius2 πd - Circumference: Pi x Diameter π = 3.1415...
Pi is related to circles as it is used to measure the area, circumference, surface area and volumes of any 2-D or 3-D shape that has circles or circle-related surfaces. In the case of area of a circle, it is measured as pi x r x r, OR pi x r2 where r is the radius of the circle. The relation between the radius and the circumference is also shown by by pi; circumference / diameter ( or 2 x radius) = Pi OR circumference = pi x diameter = 2 x pi x r All related shapes like cones, cylinders, spheres, toruses, and even doughnuts can be measured using Pi. Pi is usually given as 22/7, which doesn't even come that close. Another common value is 3.14, which is the cut off form of its value.
The formula for area of a circle is radius squared times pi. The formula for volume of a cylinder is radius squared times pi times height.
The area of a circle is pi times the square of the radius. Pi has no relationship with the area of a polygon.
Pi is the number of times the diameter of a circle will fit into the circumference. Pi is not a circle, and does not have a circumference or area. To calculate a circumference USING pi, the circumference is diameter * pi. To find the area using pi, area = pi * radius * radius