https://decimal-to-binary.com/ploschad-kuba.html?id=15

Cube surface area with side 2.3 equal to 31.74

Cube area calculation method:
Side a:

Cube

A cube (or hexahedron) is a regular polyhedron that consists of polygons that are squares.
Cube surface area formula Cube surface area formula On the side where a is the side of the cube

Solution:
S = 6a2
= 6·2.32
= 6·5.29
=
31.74

a: Cube surface area with side 2.3 equal to 31.74