Question

Surface area of a cube is 27 square centimeters. Calculate the length of the sides of the cube

Answer 1

surface area of a cube =area of one side $\times 6$

let the area of one side be x

$x\times 6=27\\6x=27\\x=4.5cm^2$

$area=length squared\\=l^2\\4.5=l^2\\\sqrt{4.5}=l\\l=2.12$