Canal Surrounding a city.

Geometry Level pending

A canal is surrounding a circular city of diameter 4 kilometres. Four lampposts are located on the border of the city close to the canal at locations A,B,C and D, such that a direct path from A to C cuts another direct path from B to D perpendicularly at a junction E. The value of EA^2 + EB^2 +EC^2 +ED^2 is

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