pls help asap tysm

Using the Law of Sines

XY / sin 60  = 4/sin45

XY   =  4sin 60  /  sin 45

XY  = 4 sqrt (3) / 2  / ( sqrt (2) / 2 )

XY  = 2*2sqrt (3) / sqrt (2)

XY =  4sqrt (3) /sqrt (2)

XY    =  4 sqrt (6)  /2

XY  = 2sqrt (6)

thanks for the help!