If a parabolic arch has base of length 
and altitude 
, compute the area of the region bounded by the arch and the base.
Incomplete.
If a parabolic arch has base of length and altitude , compute the area of the region bounded by the arch and the base.
Incomplete.
The parabola is y=(-4h/b^2)x^2. The asked area is hb – 2*area_under_parabola.