The length of the line segment KL is 5 units.
In this question we have been given a point L which lie on the line segment KM.
Also, we have been given the measure of segment LM = 15 and the measure of segment KM = 20
We need to find the length of the line segment KL.
As point L is on the line segment KM.
We get an expression, KM = KL + LM
Now we substitute values in above equation, to find the value of KL.
⇒ 20 = KL + 15
⇒ 20 - 15 = KL + 15 - 15
⇒ 5 = KL
⇒ KL = 5
Therefore, the length of the line segment KL is 5 units.
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