1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Area of a parallelogram with vectors

  1. Apr 8, 2009 #1
    1. The problem statement, all variables and given/known data
    Determine the area of the parallelogram spanned by the vectors
    < 0, 9, 6 > and < −10, −6, −4 >

    2. Relevant equations
    Area = A X B

    The cross product of < 0, 9, 6 > and < −10, −6, −4 > = 0i - 60j + 90k

    3. The attempt at a solution

    I know the area is the cross product of A X B, but the examples that I have done did not have a k value. ex <3,-3,0> X <2,3,0> What do I do now that I have a k value?
  2. jcsd
  3. Apr 8, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    Area is a real number. Not a vector. It's |AxB|. You need to find the length of the cross product vector.
  4. Apr 8, 2009 #3
    Thank you, I got it.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Area of a parallelogram with vectors
  1. Area of parallelogram (Replies: 5)