Do you know the multiples of 10
U can do tallies.. Its like little lines..That add up to 30.
The answer is either a or d but we know she did all of this for more than 52 minutes.
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