An easy to use online calculator to calculate the arc length s the length d of the Chord and the area A of a sector given its radius and its central angle t. Formulas for arc Length chord and area of a sector Figure 1. So arc length s 6 4 2.
Rounded to 3 significant figures the arc length is 628cm.
Well of course it is but its nice that we came up with the right answer. The arc length is frac 1 4 times pi times 8 2 pi. How to Find the Sector Area. In general you can skip parentheses but be very careful.