# Finding points which divides a right trapezoid's area into equal pieces

I have a right trapezoid as follows;

We have $h$, $b$ and $a$. For any $n$, I need to divide total area of trapezoid into equal parts. I have to find a general formulation for the length of $p$ points for my study. Although I try to figure out from starting from $n=2$, $n=3$,... I couldn't able to generalize the formulation. Is there any general formulation for this?

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thanks for editing, I couldn't able to put images with my current reputation :) – knightoi Dec 5 '11 at 23:51
Do you mean that you have a solution for $n=2$ and $n=3$ and just need to generalize it to arbitrary $n$? If so, please show your existing work. – Henning Makholm Dec 6 '11 at 0:06