SOLUTION: If a boat travels north for 21 miles then 28 miles east then goes hack in a strait line how many miles did it take to go back

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Question 878829: If a boat travels north for 21 miles then 28 miles east then goes hack in a strait line how many miles did it take to go back
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
Applying Pythagorean Theorem:
sqrt%2821%5E2+%2B+28%5E2%29 = 35mi bee-line back