Problema Solution
In ΔLMN, (segment)LN is extended through point N to point O, m∠MNO = (4x−11)∘, m∠NLM = (x−4)∘, and m∠LMN = (x+13)∘ . What is the value of x?
Answer provided by our tutors
We knot that the exterior angle of a triangle is equal to the sum of the opposite interior angles thus we have:
(x - 4) + (x + 13) = 4x - 11
........
click here to see the equation solved for x
........
x = 10