Answer:
276°
Step-by-step explanation:
In the figure attached, circle D is shown.
arc BA + arc AC + arc CB = 360°
(7n + 12) + (13n - 16) + 6n = 360
26n - 4 = 360
n = (360 + 4)/26 = 14°
arc BAC = arc BA + arc AC
arc BAC = (7n + 12) + (13n - 16)
arc BAC = 20n - 4
arc BAC = 20(14) - 4 = 276°
Answer:
The answer is 276 degrees. I checked on Khan Academy. The reason 84 degrees is NOT the answer is because that would be the minor arc, not the major arc.
Step-by-step explanation:
