13. Predict the unknown values

In the following figure, $BLUE$ is a parallelogram with $O$ is the point where the diagonals meets and $OU = 22, OE = 13, OL = n-6$ and $OB = m-n$.  Also, determine the diagonal values.

 

 

1. The value of '$m$' $=$ . 

 

2. The value of '$n$' $=$ .

 

3. Measure of the diagonal $BU$ $=$ .

 

4. Measure of the diagonal $LE$ $=$ .