Problem 125 of 7
Derive the arc length formula for a 60-degree central angle.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
compare arc fraction to circumference.
Hidden until you reveal it.
Derivation must connect arc fraction or radian definition to circumference.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Relate the central angle to a fraction of the full circle or to radian definition.
2. Apply that fraction to circumference or solve theta=s/r.
3. State the resulting arc length formula.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Stating the formula without justification.