Problem 155 of 7
Solve the arc-length context: An irrigation pivot arm is 80 feet long and rotates through 1.2 radians.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
model distance along a circular path.
Hidden until you reveal it.
Context must model distance along a circular path using arc length.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the radius and central angle.
2. Convert degrees to radians if needed.
3. Use s=r theta and interpret units in context.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using straight-line chord length when the context asks distance along the circular path.