Needless to say, the length of an arc doesn't inherently define its overall quality, but it can impact its readability; so, for anyone wondering, here is a rundown of the total number of chapters ...

Calculate the arc length to 2 decimal places. First calculate what fraction of a full turn the angle is. 90° is one quarter of the whole circle (360°). The arc length is \(\frac{1}{4}\) ...

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.