Question

The answer for number 17

Answer 1

Since cube has all faces as Squares

perimeter of each face P = 22.2
as we know perimeter of a square is P = 4 * ( Sides of a square )

let the sides of the square be 'x'

Hence , 22.2 = 4 * x

=> x = 22.2/4
=> x = 5.55

hence the edge's length is 5.55

Note : if the length from edge to edge is asked then

Length of the Diagonal for a cube =
$\sqrt{3} \times x$
Hence we get edge to edge length as

√3 * 5.55 = 9.612