we know that
The measurement of <u>the external angle</u> is the semi-difference of the arcs which includes
so
m∠LMN=
therefore
the answer is 
This is college? Woah I'm not advanced. Middle school!
Answer:
You are correct. Good job and merry Christmas, have a good day.
Answer:
20%
Step-by-step explanation:
400/2000=0.2
0.2*100=20