Question

What is the what is the diagonal of the cube whose each edge is 4 cm

Answer 1

$\sf{Edge \ of \ cube = 4 \ cm \qquad (Given)}$

$\sf{Let, \ each \ edge \ be \ x \ cm.}$

$\sf{\therefore \quad x = 4 \ cm}$

${\boxed{\sf{Diagonal \ of \ cube = {\sqrt{3}} x}}}$

$\sf{So, \ Diagonal = {\sqrt{3}} * 4}$

$\sf\red{Diagonal \ of \ cube = 4 {\sqrt{3}} \ cm }$