Problem 3 of 7
Define one radian for circle general radius r.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
explain radian as angle intercepting arc equal to radius.
Hidden until you reveal it.
Explain radian as an angle intercepting arc equal to radius.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. State that radian measure is arc length divided by radius.
2. For one radian, set arc length equal to radius.
3. Explain why the unit is dimensionless.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Defining radian as a fixed number of degrees only.