Question

can you draw a rhombus LEFT in which LF=4.5cm and diagonal ET=6cm? give reason.

Answer 1

Now the simple reason is that here  all sides are  are increased in same proportion i.e the scale factor is 43
BC is increased to BC' in same proportion as BD to BD' and also CD to CD'
So  BA is increased to BA' in same proportion 
and one important observation is that the diagonal BD remains the diagonal only the length is increased .
Opposite sides are also parallel.

So in short one can say that we are here stretching the point D to a point D' of the parallelogram diagonally keeping point B fixed...