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I need help on this question please help!

I need help on this question please help!-example-1

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Answer will be 160 Degree. As per the rule, that angle subtended by any arc at the center will be double of the angle subtended by the same arc at the remaining part of the circle.
Here in example the minor arc CA will subtend 160 degree at the center which is double of the angle 80 degree as it is subtended by the same arc at the remaining part of the circle.
User Wazy
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5 votes
the central angle COA = 2 * angle at the circumference
m < COA = 2 * 80 degrees

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