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
The circumference and area of a circle, with radius r is: circumference = 2*pi*r and area = pi*r2 Use the first to calculate r and then the second to calculate the area.
you divide the circumference by pi to get diameter then divide that by 2 to get radius then square the radius and multiply it by pi
Radius x 2 x 3.14 = Area * * * * * That is the formula for the circumference! The area = pi*radius2
radius = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
The circumference is 4pi
pi*radius2 = area radius = square root of (area/pi) circumference = 2*pi*radius
The circumference and area of a circle, with radius r is: circumference = 2*pi*r and area = pi*r2 Use the first to calculate r and then the second to calculate the area.
you use pi to calculate the area or circumference of a circle
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
By dividing its circumference by 2*pi will give the radius of the circle and its area = pi*radius2
you divide the circumference by pi to get diameter then divide that by 2 to get radius then square the radius and multiply it by pi
Because of the radius of the circle
pi times diameter = circumference
There is no such thing as an "area of circumference".If 27 cm is the diameter, you can calculate the circumference by multiplying this by pi, which is approximately 3.1416.
Circumference C = 2 r times pi C = 119.38052083641213 centimeters. Area A = r2 times pi. A = 1134.0815 square centimeters.
The area of a circle (A) is pi x r x r.The circumference of a circle (C) is pi x d, or pi x 2r.So if you know C, you can calculate r using the formula C = pi x 2r or r = C/2piOnce you know r, you can calculate A using the formula A = pi x r x r
to calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. the you have circumference!