In the figure, \(KLMN\) is a square, and angle \(KJN = 45°.\) Find the area of figure \(JKLMN.\)

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In the figure, \(KLMN\) is a square, and angle \(KJN = 45°.\) Find the area of figure \(JKLMN.\)

A. \(9+92\sqrt{9}+92\)
B. \(9+182\sqrt{9}+182\)
C. \(18\)
D. \(18+92\sqrt{18}+92\)
E. \(27\)

[spoiler]OA=E[/spoiler]

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