A chord separates the circumference of a ... 90° is one quarter of the whole circle (360°). The arc length is \(\frac{1}{4}\) of the full circumference. Remember the circumference of a circle ...

A chord separates the circumference of a circle into two sections - the major ... The formula to calculate the arc length is: \(\text{Arc length} = \frac{\text{angle}}{360^\circ} ...