SOLUTION: As David paddled his canoe across a 90-yd-wide river, the current carried him 40 yd downstream. How far did he paddle?

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Question 552206: As David paddled his canoe across a 90-yd-wide river, the current carried him 40 yd downstream. How far did he paddle?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
He paddled d=sqrt%2890%5E2%2B40%5E2%29=98.488578 yards.