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# Cuboid calculator

Input any three variables of a rectangular prism. The calculator gives a step-by-step solution on how to find the missing variable.

Cuboid (Rectangular Prism) Calculator
input any three variables of a cuboid and select a variable to find
show help ↓↓ examples ↓↓
I want to find
Input three variables
calculator works with decimals, fractions and square roots (to input $\color{blue}{\sqrt{2}}$ type $\color{blue}{\text{r2}}$)
length
$l$ =

width
$w$ =
height
$h$ =

body diagonal
$d$ =
volume
$V$ =

surface area
$A$ =

lateral surface area
$AL$ =

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Cuboid formulas
 $$V = l \cdot w \cdot h$$ volume
 $$P = 2 l w + 2 l h + 2 w h$$ surface area
 $$d^2 = l^2 + w^2 + h^2$$ diagonal
 $$A_L = 2 l h + 2 w h$$ lateral area
examples
example 1:ex 1:
Find the surface area of a cube with side 8cm.
example 2:ex 2:
If the surface area of a cube is 144 cm2, find its volume.
example 3:ex 3:
If the body diagonal is 4cm, calculate the surface area of a cube.
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