Question 903896
The amount of fencing will be the perimeter for the sidewalk.


The dimensions of the sidewalk will be {{{25+2*6=25+12=37}}}  and   {{{50+2*6=50+12=62}}}.


PERIMETER:
{{{2(37+62)=2*99=highlight(198)}}} feet


Sidewalk Area:
{{{highlight(37*62-(25*50))}}}