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How do you find the circumference of a circle as a function of its area?
Wiki User
∙ 14y ago
Take the formulas for the area and circumference of a circle, and massage them.
R = radius = 1/2 of the diameter
A = Area of a circle = pi R2 = pi (D/2)2 = pi D2/4
C = Circumference of a circle = (pi D) or (2 pi R)
C = 2 pi R = 2 (pi R2)/R
(R) C = 2 A
(C/2pi) C = 2 A
C2 / 2pi = 2 A
C2 = 4 pi A
C = sqrt ( 4 pi A ) or 2 sqrt ( pi A )
Wiki User
∙ 14y ago
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Find the circumference of a circle with an area of 82?
The circumference is: 32.1
How do you find area of a circle when you have the circumference circle?
Divide the circumference by pi, and that will give you the diameter. Then take half of the diameter (the radius), and plug it into the formula for the area of a circle (A=πr²)
If the area of a circle is given as 67cm squared find the diameter and then circumference of this circle?
If the area of a circle is given as 67cm squared, the diameter is 9.236 cm and the circumference is 29.02 cm
If a circle has a radius of 8.6 centimeters find its area and circumference in centimeters?
54 cm
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Find the circumference of a circle with an area of 82?
The circumference is: 32.1
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To find the area of a circle using the circumference, you need to use the formula Area=Circumference squared divided by four times pi. For this type of equation, pi would be equal to 3.14.
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The area of a circle when the circumference is 10 inches is: 7.96 square inches.
A circle has an area of 962pcm2 Find the circumference of the circle?
3020.68cm2
What is the circumference and area of a circle that has a radius of 4?
To find the circumference of a circle then multiply pi (3.14159265...) by the diameter of the circle. To find the area then multiply pi by the radius squared.
How do i find circumference and area of a circle?
Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius squared
How do you find the circumference if you have the area of a circle?
Area of a circle = 3.14 * r2 Thus, radius, r = root of ( Area of a circle / 3.14 ) --------- equation 1 Circumference of circle = 2 * 3.14 * r Therefore, from (equation 1), Circumference = 2 * 3.14 * root of ( Area of a circle / 3.14 ). In a nutshell, first find the radius and then the circumference.
How do you find the area of a circle after you've got the circumference?
Area of the circle = (circumference)2 / (4 pi)Area = 0.0796 circumference2(rounded)
How do you find the radius of a circle using an equation?
What do you have? The area of the circle or the circumference? Area: divide the area by pi, then square root it Circumference: divide the circumference by 2 then divide it by pi
How do you find the area of a circle if you only know its circumference?
Divide its circumference by 2*pi which will give the radius of the circle. Area of the circle then is pi*radius squared
How do you find the area of a circle when the only information you have is the circumference?
Area of a circle is: A=π*r2 and r=circumference/2. Find 1/2 of the circumference and square it (multiply by same number), then multiply by pi.
How do you find the circumference of a circle with the area given?
Square root (Area/pi) to get the radius Then 2xRadiusxPi= Circumference
