Problem 103 of 7
Find the missing angle in cyclic quadrilateral JKLM when the opposite angle is x+40 degrees.
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use opposite angles supplementary.
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Quadrilateral must be cyclic; opposite angles are supplementary.
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Solution
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1. Identify the opposite angle pair in the cyclic quadrilateral.
2. Set their sum equal to 180 degrees.
3. Solve for the missing angle.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Using adjacent angles unless the prompt gives extra information.