44. Exemplar Exercise Problem XXIII

If the points $A \left(  1,-2 \right)$, $B \left(  2,3 \right)$, $C \left( a,2 \right)$ and $D \left( -4,-3 \right)$ form a parallelogram, find the value of $a$ and height of the parallelogram taking $AB$ as base.

 

 

The value of the a is .

 

The height of the parallelogram is $\left(\frac{i\overline{)i}}{i}\right)$.