length of arc/length of circumference = angle at centre/360
Rearranging the equation gives:
length of arc = (angle at centre*length of circumference)/360
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If you have only the arc length then you cannot find the diameter.
The length of the arc is r*theta where r is the radius and theta the angle subtended by the arc at the centre of the circle. If you do not know theta (or cannot derive it), you cannot find the length of the arc.
Find the circumference of the whole circle and then multiply that length by 95/360.
The length of an arc is the radius times the angle in radians that the arc subtends length = radius times angle in degrees times pi/180
you need to know the formula the arc length is equal to the radius times the angle made by the length of arc s = r(theta) s=arc length r=radius theta=angle