Incorrect. The acute angles are complementary, so $\displaystyle{m}\angle{Z}={{45}}^{\circ}\usepackage{cmbright}\Huge\$ . This is a $\displaystyle{{45}}^{\circ}-{{45}}^{\circ}-{{90}}^{\circ}\usepackage{cmbright}\Huge\$ triangle. In this type of triangle, the length of the hypotenuse is $\displaystyle\sqrt{{2}}\usepackage{cmbright}\Huge\$ times the length of the leg.