Question 356267
Find {{{s}}}.
{{{s=(1/2)(a+b+c)=(1/2)(285+285+434)=(1/2)(1004)=502}}}
Now find the area using Heron's formula.
{{{A=sqrt((s-a)(s-b)(s-c))}}}
{{{A=sqrt((502-285)(502-285)(502-434))}}}
Complete the calculation to find the area.