Jared N.

asked • 05/27/15

Curve=arc of a circle with a radius of 1260ft. The central angle that intercepts the curve measures pi/6 radians. To the nearest foot, length of the curve?

Using arc length formula (s=r*Θ), it is to my understanding the problem would become [s=1260*(π/6)] with 1260 as the radius and (π/6) as the central angle/theta. Simplified out this should come to s=210π.
I've drawn this out as a diagram but I just don't quite understand how to finish the problem beyond the point I have described.

1 Expert Answer

By:

Jared N.

Wow. Thanks so much. I tried substituting pi for 180 and trying to convert it and basically no matter what I did didn't come out with the answer. Guess this is my clue to stop overthinking. :) Much appreciated sir.
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05/27/15

Jon P.

tutor
You're welcome.  The trick (not really a trick) was just to realize that π is just a number, no more algebra needed!
 
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05/27/15

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