A circle has a diameter of [math]20[/math] feet. Find the length of an arc intercepted by a central angle measuring [math]36^\circ[/math].

[list=1][br][*]Find the circumference of the circle.[br][*]Set up a proportion.[br][*]Multiply both sides by [math]20\pi[/math] to find the arc length.[br][/list][br][br]This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit [url=http://www.walch.com]www.walch.com[/url] for more information.