Question

A boat travels due north for 20km and then turns and travels due east for 7km. How far away is the boat from where it started?

Answer 1

Answer:

21

Step-by-step explanation:

$a^{2}$ + $b^{2}$ = $c^{2}$

(20)^2 + (7)^2 = $c^{2}$

400 + 49 = $c^{2}$

c= $\sqrt{449}$ = 21.1 ~ 21

(hope its right)