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<image>Each triangle in the figure is a $45^{\circ}-45^{\circ}-90^{\circ}$ triangle. Find $x$. Please select the correct option: A. \frac { 3 } { 2 } B. \frac { 3 } { 2 } \sqrt { 2 } C. 3 D. 3 \sqrt { 2 }
A
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[ "\\frac { 3 } { 2 }", "\\frac { 3 } { 2 } \\sqrt { 2 }", "3", "3 \\sqrt { 2 }" ]
A