The correct answer is ∠KML + ∠MLK = ∠JKM, which is Option(A).
What is the external angle theorem?
The measure of an exterior angle is equal to the sum of the measures of the two opposite(remote) interior angles of the triangle, according to the theorem.
In the given diagram:
∠ JKM - Exterior angle of Triangle
∠ KLM - 1st interior opposite angle of Triangle
∠ KML - 2nd interior opposite angle of Triangle
According to the exterior angle theorem:
∠KML + ∠MLK = ∠JKM
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