Question 270959
must get hypotnuse of triangle 
{{{100^2+100^2=C^2}}}
{{{10000+10000=C^2}}}
{{{sqrt(20000)=sqrt(C^2)}}}
{{{141.4=c}}}
2 sides of the sqaure +the diagnal=amount of fence
{{{2(100)+141.4=highlight(341.4)}}}