Divide the central angle in radians by 2 and perform the sine function on it. Divide the chord length by double the result of step 1. This calculation gives you the radius. Multiply the radius by the central angle to get the arc length.
For this case we have the following function: We want to calculate h (5). To do this, we must evaluate the value of t = 5 in the given function. We have then: Answer: The value of h (5) for this case is given by: