What is the circumference of a circle whose arc length is 19.68 and degrees is 94?

The circumference will have 360 degrees.

So the arc is 94/360 of the whole circle.

That is, the whole circle will be 360/94 of the arc length.

So the circumference of the shole circle is 19.68*360/94 = 75.37 units (to 2 dp)