It is given thatSurface area of cuboid =758 cm2The dimension of cuboid areLength =14cmBreadth =11cmConsider h as the height of cuboidWe know thatSurface area of cuboid =2(1b+bh+1h)By substituting the values758=2(14× 11+11× h+14× h)On further calculation 758=2(154+11h+14h)So we get758=2(154+25h)By multiplication758=308+50hIt can be written as50h=758−308By subtraction50h−450By divisionh=9cm