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Sagot :
Answer:
33
Step-by-step explanation:
Vocabulary
Before going into an explanation, let's go over some important vocabulary.
- Collinear - Collinear describes points that are on the same line. This means that there is 1 line with the 3 points L, M, and N.
- Segment addition postulate - The segment addition postulate states that if there are 2 collinear points (A and C) with another point in between them (B), then the statement AB + BC = AC must be true.
Solving for MN
Using the postulate above we can make a new equation. First, let's set up an equation that mirrors the postulate.
- LM + LN = MN
Now, let's plug in the values we know.
- 13 + 20 = MN
Then, solve.
- 33 = MN
This proves that a possible value of MN is 33.
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