Question 470666
2x+2y=40
{{{x/y=2/3}}}
{{{x=2y/3}}}
{{{2*(2y/3)+2y=40}}}
{{{4y/3+2y=40}}}
{{{4y/3+6y/3=40}}}
{{{(4y+6y)/3=40}}}
{{{(10y)/3=40}}}
10y=120
y=12
{{{x=2y/3=2*12/3=24/3=8}}}
so the sides are 12 and 8