Question

What is the value of x

Answer 1

For this case, we observe that the triangles are similar.
 We observe that the triagnules have three equal angles.
 Therefore, to find the value of x we can use the following relationship:
 $x / 15 = 5/12$
 Clearing x we have:
 $x = (5/12) * (15) x = 6.25$
 Answer:
 The value of x is given by:
 x = 6.25