The circumference of a circle = \(\pi d\) or \(2\pi r\). Look at the sector of the circle shown below. To calculate the length of the arc, we need to know what fraction of the circle is shown.
Hit Create Sketch, Choose the XY-Plane, and marvel at your drawing ... You have buttons for creating a point, an arc, a circle, lines and polylines, and even fillet and trim buttons.
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