-5 -3. -1. 1
<—|—|—|—•|•—|—|—•|•—|—|
-6 -4. -2 -0 2
Which of the following can be added to the number indicated on the number line above to sum to
0?
А. -1/3
В. 1/3
C. -3
D. 3

To find the central angle- take the angle of a circle, 360 degrees and divide it by 16 to get ————> 22.5 degrees

To find the arc length, use the equation 2 πr • (your central angle/360)
————-> 2.5 π or 7.8539816...

To find the area of the sector, you use the equation s = (πr^2) • 22.5/360

s = 400 π • 0.0625 ———-> 25 π