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The circumference of a circle is NOT 360 degrees. The circumference is the distance around the curve of the circle. This has a measurement unit of length, not degrees. The angular displacement, in going completely around any point is 360 degrees and that follows from the definition of a degree.
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Vivi
CoachIt has been DEFINED that way, many centuries ago. You can divide the circle into as many parts as you want, but in the past, people seemed to like multiples of 12.A much more natural unit for angles is the radian. In that case, the circumference is equal to 2 x pi. It turns out that many formulae are simpler when angles are expressed in radians.
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How many degrees in a circle?
360 degrees are in a circle no matter how big or small the circle is A circle has 360 degrees.
How do you find the length of the arc of a circle with only the measurement of the central angle and the Circumference?
The entire circumference has a central angle of 360 degrees. The arc is a fraction of the circumference. The fraction is (central angle) divided by (360). So the arc length is: (circumference) x (central angle) / (360) .
Why is a revolution 360 degrees?
There are 360 degrees in a circle and a revolution is when something turns in a circle. There are aslo 360 degrees around a point.
What is the fraction of 20 degrees?
20 degrees is 20/360 = 1/18 of a circle.20 degrees is 20/360 = 1/18 of a circle.20 degrees is 20/360 = 1/18 of a circle.20 degrees is 20/360 = 1/18 of a circle.
What is the radius of a circle in which a 30 degrees arc is 2 inches long?
360/30*2 = 24 = circumference of the circle 24/2*pi = 3.819718634 inches = radius of the circle
