Question

Question #b1829

Answer 1

Around 5.7 km

Explanation:

Use pythagorean's theorem: `c^2=a^2+b^2`
So `c=sqrt(a^2+b^2)`
Since he's going left (on cartesian coordinates) 3.5km and up 4.5km, his final position would be (-3,5, 4.5) so you would just substitute
`c=sqrt(-3.5^2, 4.5^2))`
`c=sqrt(12.25+20.25)`
`c=sqrt(32.50)`
`sqrt(32.50)` is about 5.7km.