Question 308808
{{{P=30}}}
side {{{a= 7+b}}}
{{{a+b+c=30}}}
{{{a^2+b^2=c^2}}}
{{{sqrt(a^2+b^2)=c}}}
{{{sqrt((7+b)^2+b^2)=c}}}
{{{sqrt(b^2+14b+49+b^2)=c}}}
{{{sqrt(2b^2+14b+49)=c}}}
{{{a+b+c=30}}}
{{{(7+b)+b+(sqrt(2b^2+14b+49))=30}}}
{{{(7+2b+sqrt(2b^2+14b+49))=30}}}
im to tired to finnish sry ill try this another time