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10-03-2020
Mathematics

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Chris walks 5km due south and then 8km due east how far is Chris from his starting point?

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marcthemathtutor marcthemathtutor

16-03-2020

Answer:

√89 km ( = 9.43 km)

Step-by-step explanation:

refer to attached figures

Because we are given 2 sides of a right triangle, we can use the Pythagorean theorem to solve.

5² + 8² = x²

x² = 25 + 68

x² = 89

x = √89 ( = 9.43 km)

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