Arc Length
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The formula for arc length 
of the graph of 
from 
to 
is 
. The resemblance to the Pythagorean theorem is not accidental.
Contributed by: Ed Pegg Jr (March 2011)
Open content licensed under CC BY-NC-SA
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"Arc Length"
http://demonstrations.wolfram.com/ArcLength/
Wolfram Demonstrations Project
Published: March 7 2011
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