40. Exemplar exercise problems XIII

In figure, $PA$, $QB$, $RC$ and $SD$ are all perpendiculars to a line $l$, $AB = 6 \ cm$, $BC = 9 \ cm$, $CD = 12 \ cm$ and $SP = 36 \ cm$. Find $PQ$, $QR$ and $RS$.

 

 

$PQ =$ $cm$

 

$QR =$ $cm$

 

$RS =$ $cm$