Geometry & Trigonometry
Basic
Surface Area of a Cuboid
Total surface area of a rectangular box.
Formula
Variables
lLength
wWidth
hHeight
Example
A 2 × 3 × 4 box: A = 2(6+8+12) = 52 square units.
Did You Know?
A cardboard box unfolds into six rectangles — add their areas and you have the surface area.