Are the lines in the diagram perpendicular, parallel, skew, or none of these?

l and m:

l and n:

m and n:

Are the lines in the diagram perpendicular, parallel, skew, or none of these?

l and m:

l and n:

Are the lines in the diagram perpendicular parallel skew or none of these l and m l and n m and n Are the lines in the diagram perpendicular parallel skew or no class=