You probably set up the incorrect equation, $\displaystyle{{\cos{{65}}}}^{\circ}=\frac{{14}}{{x}}\usepackage{cmbright}\Huge\$ . A correct way to set up the equation is $\displaystyle{{\sin{{65}}}}^{\circ}=\frac{{14}}{{x}}\usepackage{cmbright}\Huge\$ . Solve this equation for x and round off.