Question

if L, M, and N are collinear with M BETWEEN L and N, MN = 5, and LN = 18, then what is the length LM?

Answer 1

`LM = 13`

Explanation:

Given

`MN = 5`

`LN = 18`

Required

`Find\ LM`

Since, M is between LN, we have:

`LN = LM + MN`

Substitute values for MN and LN

`18 = LM + 5`

Make LM the subject

`LM = 18 - 5`

`LM = 13`