Question 118362
b+h=15 ___ b=15-h


area=bh/2 ___ a=(15-h)(h)/2 ___ a=(15/2)h-(1/2)h^2


maximum area is on the axis of symmetry ___ h=(-15/2)/(2(-1/2)) ___ h=15/2


b=15-h ___ b=15-(15/2) ___ b=15/2


a=(15/2)(15/2)/2 ___ a=225/8