If the surface area of cuboid is 108 m2, then find the height of the cuboid, whose length is 6 m and breadth is 3 m.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 4 i.e. 4 m.
Given that, length of cuboid = 6 m
Breadth of cuboid = 3 m
Surface area of cuboid = 108 m2
Surface area of cuboid = 2(lb + bh + hl)
According to the given question,
2(lb + bh + hl) = 108
⇒ 2(6 × 3 + 3h + 6h) = 108
⇒ 18 + 9h = 54
⇒ 9h = 36
⇒ h = 4
Hence the height of the cuboid is 4 m.