Mathematics

Surface Area of Cuboid

Calculate total surface area of a cuboid.

Total Surface Area = 2(lb + bh + hl)

Formula Explanation

Sum of areas of all six faces.

Variables Explained

l = length; b = breadth; h = height.

Solved Example

l=4, b=3, h=2. TSA?
2(12 + 6 + 8) = 52 square units.

Exam Tip

Lateral surface area excludes top and bottom: 2h(l+b).