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In the triangle below, which of the following expressions would represent the length of the hypotenuse, $x$?

$ {7\cos { 28^{\circ} } } $

$ {7\sin { 28^{\circ} } } $

$ {7\sin { 62^{\circ} } } $

$ {\cfrac { 7 }{ \sin { 28^{\circ}} } } $

$ {\cfrac { 7 }{ \cos { 28^{\circ}} } } $