%path = "maths/integral/defined/area/2 polynomials" %kind = chindnum["problems"] %level = 12 For a skateboard park a halfpipe shall be constructed. The cross section is delimited by two parabolas. The inner parabola is {{chiven.w}}cm broad and {{chiven.h}}cm deep and the outer parabola is {{chiven.w+2*chiven.dw}}cm broad and {{chiven.h+chiven.dh}}cm deep. The length of the halfpipe is {{chiven.d}}cm.
Find the amount of concrete needed. V= m³ %chq()