Question

If X || Y and Y || Z, then _____

A) A || B
B) X || Z
C) X⊥A
D) A⊥Z

Answer 1

B, if x||y and y||z then x||z 

Answer 2

The correct option is B.

Explanation:

The given information are

X || Y and Y || Z

According to the transitive property of lines if

`l_1\parallel l_2\text { and }l_2\parallel l_3`

then,

`l_1\parallel l_3`

Since
`X\parallel Y\text { and }Y\parallel Z`, therefore
`X\parallel Z`.

So, option B is correct.