Question

Points L, M, and N are collinear.

You are given LM = 13 and LN = 20. What is a possible value of MN?
8
09
6
07
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Answer 1

D. 7

Explanation:

LM = 13,

LN = 20,

Since points L, M, and N are collinear, therefore:

`LM + MN = LN` (segment addition postulate)

`13 + MN = 20` (substitution)

Subtract 13 from each side of the equation

`13 + MN - 13 = 20 - 13`

`13 - 13 + MN = 7`

`MN = 7`

Possible value of MN is 7.

The answer is D. 7.