Using the law of cosine for Triangle KJL, we can write:

Using the values of k,j and l, we can write:

Rounding to nearest integer, the measure of angle J will be 48 degrees.
So option B gives the correct answer
Answer:
Line R
Step-by-step explanation:
Answer: there is no answer involving real numbers
Step-by-step explanation:
-1000 is the answer to 5*10^-3