Part A : Angle LKM is a straight angle.
Part B: The measure of angle LKM is 180 degrees.
Answer to Part A:
Angle LKM is a straight angle.
Definition: A straight angle is an angle that measures exactly 180 degrees.
Step-by-step explanation:
In the diagram, we see that line segment KM is a horizontal line segment. We are also given that the measure of angle HKN is 180 degrees.
Since angle HKM and angle LKN are supplementary angles, their measures must add up to 180 degrees.
Therefore, the measure of angle LKM is 180 degrees - 180 degrees = 0 degrees.
Answer to Part B:
The measure of angle LKM is 180 degrees.
Step-by-step explanation:
As we already determined in Part A, angle LKM is a straight angle, which has a measure of 180 degrees.