one angle of a quadrilateral is 111degree and the remaining three angles are equal. find three angles.
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83 degrees. Step-by-step explanation: A quadrilateral has 4 angles
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Angle sum property of a quadilateral - all angles add upto 360
Let the other 3 angles be x (they are equal given)
Hence,
111 + x + x + x = 360
3x = 360 - 111
3x = 249
x = 249/3 = 83
Hence the other 3 angles are 83°
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