Question

On a triangle, the vector from one vertex to another vertex is 〈-12,5〉. What is the length of the side?

Answer 1

Answer:

13

Step-by-step explanation:

The magnitude of a vector < a, b > is

$\sqrt{a^2+b^2}$

Given < - 12, 5 > then the length of the side is

$\sqrt{(-12)^2+5^2}$

= $\sqrt{144+25}$

= $\sqrt{169}$ = 13