Gerry is windsurfing at Squamish Pit, just north of Vancouver, BC. In
order to get upwind 6000 m, Gerry
sails at a 45° angle to the wind and
then turns 90° and heads toward
his original destination. How far
would he have to sail to get directly
upwind the 6000 m? Express your
answer to the nearest tenth of
a metre.