A Northern Light Circle Problem
Gregory V. Akulov, teacher,
Luther College High School, Regina, Saskatchewan
February 16, 2013
When December is incredibly frosty, the famous Dasher and Dancer precede the holiday flight to the Land of Living Skies with a spectacular warm-up. They canter gracefully at a constant rate along a Northern Light Circle of radius 1 km, and curious bear Arctic, an awesome navigator from the Coffee Club Island, periodically records the exact straight-line distance between the reindeers. If the map drawn one morning
is below, find d.
Copyright © December, 2012 by Gregory V. Akulov