Diameter = 1/2 of the circle's radius. Diameter = 2 times the square root of (the circle's area/pi) Diameter = the circle's circumference/pi
Radius of the circle: 6.28/2*pi = 0.999 mm or about 1 mm
Oh, dude, you're hitting me with some math here! So, the circumference of a circle is calculated using the formula C = 2πr, where r is the radius. Since the circle is 1 meter round, the radius is 0.5 meters. Plugging that into the formula, you get C = 2π(0.5) = π meters, or about 3.14 meters. So, like, the circumference of a 1 meter round circle is approximately 3.14 meters.
The circumference of an 8-inch circle is: 25.1 inches.
Circumference = 2 x pi x radius. If you want an estimate, you can round some of the numbers involved - either the radius, or pi, or both.
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).
area of a circle = pi * radius² = 1 radius = √(1/pi) circumference = 2pi * radius = 2pi * √(1/pi) = 3.5449077
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.
If the radius of the circle is 1, the area is pi. (3.14159 square units) The circumference is twice that. (6.28318 units)
The circumference of a circle is pi * the diameter. The diameter is radius * 2. The area of a circle is pi * the radius squared. So for a circle of circumference 62.8 ft, the radius is 62.8/pi/2 which is 10.0 ft to 1 decimal place The area is pi * radius squared = 314.2 sq ft.
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If a circle has a radius of 1, the diameter is 2, and the circumference is 6.28 (approximately).
a circumference is a point in which two lines meet and the area is=pie R
A circle with a radius of 1 meter has a circumference of 6.28 meters.
The area is pi x radius x radius The circumference is 2 x pi x radius pi = 3.14
Use the formulae for the area and circumference of a circle, replacing the symbol for the radius or the diameter with the known radius or diameter. As a reminder, the radius is 1/2 the diameter.Circumference = pi x diameter area = pi x radius squared
The ratio of the circumference of a circle with radius 4 cm to its area is 1:2.