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anonymous

  • 5 years ago

In a circle, S=r*(theta2-theta1). Must the angle difference be in rad or in degrees? How to know when to use each?

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  1. amistre64
    • 5 years ago
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    radians are the standard. Radians come from radius measurements.

  2. anonymous
    • 5 years ago
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    what about degrees? when do I use them?

  3. amistre64
    • 5 years ago
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    you use degrees when you want information to be expressed in degrees. But if i recal correctly, 'S' is the length of the arc of a sector right?

  4. anonymous
    • 5 years ago
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    Yes

  5. amistre64
    • 5 years ago
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    whenever you need a measurement; you use the radius as a measureing devise; and your answer is in radians.. Whenever you want to know the measure of the angle itself, degrees or radians willl work

  6. amistre64
    • 5 years ago
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    degrees are a measure of rotations; raadians are a measure of distance....

  7. anonymous
    • 5 years ago
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    ahhh ok. So I should use both in my example?

  8. amistre64
    • 5 years ago
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    use both; and see which one you like best :) but if yo are measureing the distance of the arc length; 's'; the standard is radians.... it sounds silly to say.. its 60 degrees long :)

  9. anonymous
    • 5 years ago
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    Ok thanks

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