What is the formula for the diagonal of cube and cuboid?

By Shivank Goel|Updated : August 5th, 2022

A line segment that joins two vertices of a polygon or polyhedron is diagonal.

Let us consider 'a' as the side length of the cube.

And as we know,

Diagonal of a cube = 3√a

Consider l as the length

b as the breadth

h as the height of a cuboid

Diagonal of a cuboid = √(l2 + b2 + h2)

Therefore, when asked What is the formula for the diagonal of cube and cuboid? then the answer will be that the formula for the diagonal of the cube is 3√a and the cuboid is √(l2 + b2 + h2).

Summary:

What is the formula for the diagonal of cube and cuboid?

The formula for the diagonal of the cube is 3√a, and the cuboid is √(l2 + b2 + h2).

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