SOLUTION: Austin who is a good cyclist and on last Sunday, he rode 8km due west and then 10km due north. How far was he from his starting point?

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Question 1141347: Austin who is a good cyclist and on last Sunday, he rode 8km due west and then 10km due north. How far was he from his starting point?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Starting position, and the other two points form a right triangle:
Find hypotenuse with Pythagorean Theorem formula, unless you can recognize another way.