A submarine travels 5.5 km due East from its base and then turns and travels due North for 3.4 km. How far away is the submarine from its base?
Give your answer rounded to 1 DP.​

6.5km

Step-by-step explanation:

If you make a diagram, you'll see the submarine forms a right angle triangle with the base, where the hypotenuse is the length from the submarine to its base, and 5.5 and 3.4 are the side lengths. To find the hypotenuse, use the formula a^2+b^2=c^2.

5.5^2+3.4^=c^2

41.81=c^2

6.466=c

Round it to one decimal point and you get 6.5km.

6.5km

Step-by-step explanation:

I think is this I am not really sure

d is the answer

step-by-step explanation: