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To convert area into circumference, take the two formulas for circles--circumference and area:
C=2pi*r
A=pi*r^2
Now, isolate the common variable (r) in the second equation.
r=sqrt(A/pi)
Now you can substitute this in for "r" in the first equation to find circumference
C=2pi*sqrt(A/pi)
C=2pi*sqrt(36pi/pi) pi cancels out
C=2pi*sqrt(36)
C=2pi*6
C=12pi
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What is the circumference of a 36 circle?
The circumference of a 36 circle is: 113.1 (diameter x pi = circumference).
How is pi in relation to a circle?
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 a circle has a diameter of 36 what is the circumference?
pi x diameter gives you the circumference. pi x 36 = ? I don't have my calculator on me.
What is the diameter of a 36 inch circumference?
Divide the circumference of a circle by pi to obtain the diameter. Diameter of a 36 inch diameter circle is 36/3.1416 inches , or 11.459 inches.
What is the circumference and area when radius 9in and d 7.3?
Circumference of a circle = 2*pi*radius or pi*diameter Area of a circle = pi*radius2
What is the circumference of a 36 circle?
The circumference of a 36 circle is: 113.1 (diameter x pi = circumference).
What is the area of a circle you the circumference is 12 pi ft?
Circumference = 2 * pi * radius 12 pi ft = 2 pi radius radius of the circle = 6 ft Area = pi *radius2 Area = pi (6)2 Area = 36 pi ft2
What is the radius of a circle whose circumference is 36 pi?
The radius of a circle whose circumference is 36 pi (113.1) is: 18 (circumference divided by Pi divided by 2 = radius)
What is the area of a circle with the side length of 12cm and a perimeter of 12cm?
A circle has no "sides". The "perimeter" of a circle is usually referred to as the circle's "circumference", i.e. the distance around it. The circumference of a circle is [ 2 pi R ], where 'R' is the distance from the center of the circle to its curve. If the circumference of a circle is 12, then 12 = [ 2 pi R ]. R = [ 12 / 2 pi ] = [ 6/pi ]. The area of a circle is [ pi R2 ]. If R = 6/pi, then the area is [ pi R2 ] = [ pi x (6/pi)2 ] = [ pi x 36 / pi2 ] = ( 36/pi ) = 11.459 square centimeters (rounded).
How do you do circumference and area?
Circumference of a circle = 2*pi*radius or diameter*pi Area of a circle = pi*radius2
What is the circumference of a circle with a radius of 18 leave in pi?
Circumference = 36*pi
What is the formula for finding circumference and area of a circle?
Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).
What is the circumference of 36 inch circle?
Circumference of any circle = 2*pi*radius or diameter*pi
How do you calculate circumference and area of pi?
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
Area of a circle is 36 square centimeters what is the circumference of the circle?
The area of a circle with radius r is pi*r*r and its circumference is 2*pi*r Use the first to find r and then use that value of r in the second to find the circumference.
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 is pi in relation to a circle?
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).
