Question

A submarine travels 2.6 km due West from its base and then turns and travels due South for 4.9 km.
How far away is the submarine from its base?
Give your answer rounded to 1 DP.

Answer 1

By right angle theorem

Base^2+altitude^2=hypotenuse^2

2.6^2+4.9^2 =30.77

$\sqrt{30.77 = 5.54 = 6 }$

Answer 2

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