Question 345998
For a rectangle,
{{{P=2L+2W}}}
{{{L=6+W}}}
Substitute,
{{{2(6+W)+2W=80}}}
{{{12+2W+2W=80}}}
{{{4W=68}}}
{{{highlight(W=17)}}}feet
Then,
{{{L=6+17}}}
{{{highlight(L=23)}}}feet