Part of the circumference of a circle
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an angle subtended by an arc is double at the center
minor arc of cord is half of major arc of same cord
The relation between the arc of length and the central angle is that the arc of length divided by one of the sides is the central angle in radians. If the arc is a full circle, then the central angle is 2pi radians or 360 degrees.
the general formula is arc length is equal the radius times the angle. s=r< s=arc length r=radius <=angle
major arc