Given:
It is given that the lines AB and DE are parallel.
We need to determine the value of x.
Value of x:
Let us use the property of similar triangles.
Thus, using the similar triangles, the corresponding sides of the triangle is given by

Substituting AB = 10, ED = 6, BC = 14 and CD = x in the above expression, we get;

Cross multiplying, we have;



Thus, the value of x is 8.4