Question 1107520
L length
{{{25L=1000}}}
{{{L=1000/25}}}
{{{L=10(100/25)}}}
{{{L=10*4}}}
{{{highlight_green(L=40)}}}



",... or run the perimeter, 10 times."
w, width
{{{10(2*40+2*w)=1000}}}
-
{{{80+2w=100}}}
{{{40+w=50}}}
{{{highlight_green(w=10)}}}


Gym area,
{{{40m*10m=highlight(400*m^2)}}}