What is happening
You arrive at a kitchen garden being fenced against rabbits.
The plot is 9 m along one side and there are 44 m of fencing on the roll. The gardener has cut once already and does not want to cut wrong twice.
Perimeter of a plotRunning
Half the perimeter used
10.6m
Half the fencing
22m
Angle lock. Plot width at 1.6 m. Half the perimeter used 10.6 m, Half the fencing 22 m. Currently half the perimeter used is short by 11.4 m.
What has to balance