guh

[Natters]

these parallelogram questions
okay say you have
A=(0,0,0)
B=(1,2,0)
C=(1,2,2)
and you have to find D so that ABCD is a parallelogram;
all the guides and explanations i can find just say AB=CD or BC=AD
couldnt you then find three different parallelograms? am i missing something?
(0,0,2), (2,4,2) and some other one would all make parallelograms afaik

[Natters]

http://hotmath.com/learning_activities/interactivities/3dplotter.swf
try chucking them on that and you might get me

[dc302]

(2,4,2) cannot be a point because it's specifically asking for the parallelogram ABCD. If you had (2,4,2) as your D, your parallelogram would become ABDC.

[Natters]

sry i forgot about this thread
how did you get abdc?
i don't think i was taught the labelling convention properly for some reason now

[dc302]

It just means in order to get the parallelogram, you have to go from A to B, B to D, D to C, and then C to A. Therefore it is the ABDC parallelogram, which is not what you want.

[Natters]

ahh i think i get it, one more q
why are you answering my juvenile questions with your maths majors and whatnot
go do genius shit!