Question 672489
Let the side of the square = {{{ s }}}
Let {{{ A }}} = the area of the square
{{{ A = s^2 }}}
{{{ 2A = 2*s^2 }}}
{{{ 2A = ( sqrt(2)*s)^2 }}}
note that what you are squaring is the diagonal
of the square, so just make another square
using the diagonal of the 1st square