Answer:
D. name an angle
Step-by-step explanation:
Answer: =
83.95% is equal to 83.95% (look at it)
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0.25
x = 60°
AOB Center: O AB: diameter
arc ADB = 180°
arc DB = 180 - arc AD = 80°
x = 1/2 x ( arc DB + arc AC) = 1/2 x (80 + 40) = 60°
