Approximation of an arclength by multiple hypotenuses.
<p><a href="//commons.wikimedia.org/wiki/User:Nicoguaro" title="User:Nicoguaro">Nicoguaro</a>
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<ul><li>derivative work: <a href="https://en.wikipedia.org/wiki/User:Dariusofthedark" class="extiw" title="en:User:Dariusofthedark">Dariusofthedark</a> (<a href="https://en.wikipedia.org/wiki/User_talk:Dariusofthedark" class="extiw" title="en:User talk:Dariusofthedark"><span class="signature-talk">talk</span></a>)</li></ul>
<span class="int-own-work" lang="en">Own work</span>