Question

A submarine travels 1.6 km due West from its base and then turns and travels due South for 6.4 km.

How far away is the submarine from its base?

Give your answer rounded to 1 DP

Answer 1

Answer:

6.6

Step-by-step explanation:

use pythagorean theorem. a^2+b^2 = c^2

Answer 2

Answer:

4.6

Step-by-step explanation:

1.6^2 * 6.4^2 = 21.05 - then you square root so it is 4.588027898781785 then rounded to 1dp is 4.6