Question 1102205
Use the law of cosines to find the missing side,
{{{a^2=b^2+c^2-2bc*cos(A)}}}
{{{a^2=90^2+130^2-2(90)(130)cos(70)}}}
Work that out to find the missing side {{{a}}} and then,
{{{L=90+130+a}}}
{{{L=220+a}}}