Answer:
7sqrt(2)
Step-by-step explanation:
LM squared is 49, and since the measure of angle K is 45, LM is equal to KM. So KM squared is also 49. 49+49=98. The square root of 98 is 7sqrt(2).
KL=7√2
LM=7
sin45°=LM/KL
√2/2=7/KL
KL=2*7/√2=14√2/2=7√2
