Question

Please help, i have a math test tomorrow and i have no clue how to do this

Answer 1

what do you exactly want the lenght or the mesure ?

Answer 2

∠MLJ=180-90-51=39

∠LJK=180-90-72=18

`(14)/(sin39) =(LJ)/(sin51) \\LJ=17.29\\(KL)/(sin18) =(17.29)/(sin90) \\KL=5.34`

please feel free to ask if you don't understand any part of the above solution