# Math Help - Find the angle between the vectors

1. ## Find the angle between the vectors

Find the angle between the vectors <2,-4> and <-6,-1>. Round to the nearest whole degree.

Do i use the dot product to fnd the angle? And my classmate got 107 degrees as an answer and I wanted to see if he was correct or not, thanks!

2. ## Re: Find the angle between the vectors

Yes, you should have a component form and a trigonometric form for the dot product which will allow you to solve for the angle. To the nearest degree, your classmate is correct.

3. ## Re: Find the angle between the vectors

Thanks! Im using the formula right now, cos theta = a*b/|a|*|b|