What is my hypotenuse with angles 45, 45, and 90 with opposite side length of 2
$$\\h^2=2^2+2^2\\ h^2=4+4\\ h^2=8\\ h=\sqrt{8}\\ h=\sqrt{4*2}\\ h=2\sqrt{2}\\$$
$${\mathtt{2}}{\mathtt{\,\times\,}}{\sqrt{{\mathtt{2}}}} = {\mathtt{2.828\: \!427\: \!124\: \!746\: \!190\: \!1}}$$