Area of a triangle formed by vectors

[t_n_p]

Homework Statement

What is the area of a triangle formed by the vectors 2i-j+3k and i+2j+2k.

The Attempt at a Solution

I didn't know it was possible to find the area with only 2 vectors!
Can somebody please show me how?

 

[Alabran]

I imagine the third side of said triangle is the length between both of the vectors.

That said, this seems to be a tricky problem because of the three dimensions involved, I'm thinking about it now.

 

[t_n_p]

I found this on the net...

Helpful?

 

[t_n_p]

Yeah i figured it out using vector products!

 

[malawi_glenn]

Yeah i figured it out using vector products!

Did you check your textbook in linear algebra? This is standard problems.

 

[t_n_p]

Did you check your textbook in linear algebra? This is standard problems.

Wasn't in my textbook..