Answer:
3.2 units 
Explanation:
Given that:
WY bisects UV at Y. 
 and 
, 
To find: UV = ?
Solution:
First of all, let us draw the diagram of the given dimensions and bisector line WY of UV.
As UV is bisected i.e. divided in two equal parts at Y by the line WY
Therefore, UY = YV 
UV = UY+YV
OR
UV = 2 YV
Now, let us put the given values to solve for 
:

Now, we are given that:

Putting value of 
 as solved in above step to get the value of UV:

So, answer is UV = 3.2 units