Question Number 75078 by ~blr237~ last updated on 07/Dec/19
Answered by MJS last updated on 07/Dec/19
$$\mathrm{the}\:\mathrm{diagonal}\:\mathrm{is} \\ $$$$\sqrt{\left(\mathrm{14}+\mathrm{9}\right)^{\mathrm{2}} +\mathrm{7}^{\mathrm{2}} }=\mathrm{17}\sqrt{\mathrm{2}} \\ $$$$\Rightarrow\:{x}=\mathrm{17} \\ $$