Question 35458
The formula for the area of a parallelogram is Base times Height (or length of the altitude).  That is, A = BH.  To find the lenth of the altitude just divide the Area by the length of the base:

{{{ Altitude = (Area)/(Base)}}}
{{{Altitude = (2x^2 + 9x + 4) / (2x+1)}}}


As "chance" would have it, this expression for Area factors into (2x+1)(x+4), so the fraction reduces to this:

{{{ Altitude = ((2x+1)*(x+4))/(2x+1) }}}
{{{ Altitude = x+4 }}} cm


R^2 at SCC