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## whadduptori 3 years ago Robin hikes due south for 6 km. Then she hikes due east for 3.25 km. What is the best estimate, in km, of the distance from her starting point?

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1. JakeV8

|dw:1351790485543:dw|

2. JakeV8

you can use Pythagorean theorem... $a ^{2} + b ^{2} = c ^{2}$ so... $distance = \sqrt{a ^{2} + b ^{2}}$

3. whadduptori

i dont know how to solve this

4. whadduptori

ohh ok

5. whadduptori

wait wat are we finding? c^2?

6. JakeV8

the distance on that diagonal would be "c" And the relationship is that c^2 = a^2 + b^2 but you need to solve for c, not c^2.

7. mangorox

@whadduptori Hi, I need help with this question too! Would the answer be 7?

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