Answer: weird question but yes they should if there is only 3
Step-by-step explanation:
by pythagorean formula, the last side is √(61)
by cos rule
cos A

A = 39.81
1 is L
2 is N
3 is M
Look back at your notes if you have any.
360/6 = 60 degrees.
2pi/6 and pi/3 makes sense.
Out of 1/6 = 60 there's your answer.
Brainliest please!