im not really sure about this since i think you can just stop at equation 1
L = rc
where c = angle in radians , r = radius and l = length of the arc
so
5.4 = 6 r
r = 0.9 radians
and this equals the angle at the center.
0.9
<span>For more difficult cases, it may be easier to draw the graph first using the domain if possible and then determine the range graphically.See if you can find the inverse function. The domain of a function's inverse function is equal to that function's range.<span>Check to see if the function repeats.</span></span>
So it should be to the nearest tenth or hundredth ?
