The correct option is B which is ''LM is 4 units and XZ is 6 units''.
Consider the two triangles. To prove that △LMN ~ △XYZ.
What is the SSS similarity theorem?
The SSS similarity theorem states that when sides of any two triangles are in proportion, this means that these two triangles are similar.
Here; YZ:MN = 3:1
So, there is an assumption that ΔXYZ:ΔLMN = 3:1.
Now when XY = 12, we need value of LM = 12/3 =4.
So, XY: LM would become 3:1.
If value of LN is given as 2, we need value of XZ = (2)*(3) = 6.
Since ΔLMN is a smaller triangle by values given, we need to multiply the value of side LN by 3 to get the value of XZ in ratio 3:1.
So, by the data given in option 2, we would have all lines of both triangles in the ratio of 3:1,
Therefore;
YZ:MN = 3:1
XZ:LN = 3:1
XY:LM = 3:1
Hence, by using the SSS postulate for similarity of triangles we would prove that;
ΔXYZ:ΔLMN = 3:1
and also
△LMN ~ △XYZ
Hence, the correct option is B which is ''LM is 4 units and XZ is 6 units''.
To know more about SSS postulates theorem click the link given below.
https://brainly.com/question/21247688