Find the area of the parallelogram with the vertices K(1, 2, 3), L(1, 2, 6), M(3, 8, 6), and N(3, 7, 3).

Question

psymon · Answer

Since you're doing the same work I am, you might know. Something confused me about it, but if you have a plane like 2x + 3y - z = 6. Is (2,3,-1) parallel or orthogonal to the plane?

raffle_snaffle · Answer

Leis 2, 3, -1 a point or a vector

raffle_snaffle · Answer

is*

psymon · Answer

Vector.

raffle_snaffle · Answer

are you given another point?

psymon · Answer

Nope.

raffle_snaffle · Answer

i mean vector?

psymon · Answer

I mean the problems include another point, but it matters because I know the dot product of two vectors is 0 if they're orthogonal. So I have to know if that vector in the plane is already orthogonal to the plane or parallel to it, that way I get the right direction, lol.

raffle_snaffle · Answer

hold on her psymon i had a problem similar to it on my lab.

raffle_snaffle · Answer

sorry psymon I am of no help. =/

psymon · Answer

No worries :P

raffle_snaffle · Answer

I am trying to figure my problem out...

raffle_snaffle · Answer

zach?

psymon · Answer

Well, yours is the magnitude of the cross-productof two vectors

psymon · Answer

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zzr0ck3r · Answer

@raffle_snaffle what section is your question from?