Question 892175
{{{c^2=a^2+b^2-2ab*cos(C)}}}
{{{3^2=3^2+3^2-2(3)(3)cos(C)}}}
{{{0=9-18cos(C)}}}
{{{18cos(C)=9}}}
{{{cos(C)=1/2}}}
{{{C=60}}}