The central angle corresponding to AOB is half of the 8pi/9 radians mentioned, meaning that the central angle of AOB is 4pi/9.
Converting that to degrees:
4pi/9 180 degrees
-------- * -------------------- = 80 degrees.
1 pi
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Disagree 15 minutes
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D) 5 4/9
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honestly math is my worst subject but i think its 2 im really srry i think thats wrong tho
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