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 = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
Radius x 2 x 3.14 = Area * * * * * That is the formula for the circumference! The area = pi*radius2
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
By dividing its circumference by 2*pi will give the radius of the circle and its area = pi*radius2
Pi can be used to calculate the area of a circle Pi can be used to calculate the circumference of a circle
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
Circumference C = 2 r times pi C = 119.38052083641213 centimeters. Area A = r2 times pi. A = 1134.0815 square centimeters.
radius = circumference/(2*pi)area = pi*radius2So Area in terms of Circumference is A = pi [C/2pi]2or (circumference)2/4 pi
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!
Circumference = pi*d Area = pi*d2/4 So 4*area = pi*d2 4*area/Circumference = pi*d2/(pi*d) = d