Question 945158
Use the law of cosines,
{{{c^2=a^2+b^2-2ab*cos(C)}}}
{{{c^2=16^2+10^2-2(160)cos(22)}}}
{{{c^2=256+100-320(0.9272)}}}
{{{c^2=59.3}}}
{{{c=7.7}}}