Question

A ship sails 20 km west then 35 km south. Calculate how far it
is from it's starting position to 1 decimal place.

Answer 1

Answer:

40.3

Step-by-step explanation:

Use pythagoras theorem, a^2 + b^2 = c^2

400 + 1225 = 1625

sqrt of 1625 = approx 40.3

Answer 2

Answer:

40, 3 km

Step-by-step explanation:

Pitagora

AC = √(AB² + BC²)

AC = √(20² + 35²)

AC = √(400 + 1225)

AC = √1625

AC ≈ 40,3 km