The surface area of a cuboid is Its length and breadth are 14 cm and 11 cm respectively. Find its height.

Given,


Surface area of cuboid = 758 cm2


Length of cuboid = 14 cm


Breadth of cuboid = 11 cm


Let height of cuboid = h cm


Total surface area of cuboid = 2 (lb + bh + hl)


= 758 = 2 (14 × 11 + 11h + 14h)


= 154 + 25h =


= 25h = 379 – 154 = 225


= h =


Height of cuboid = 9 meter.


14