3D Vectors (1 Viewer)

[daddythicclegs]

Q. A parallelogram PQRS has three of its vertices at the points P(2,1,0), Q(-1,-1,1) and R(0,2,-1). Find the area of the parallelogram.

 

[Drongoski]

Area of parallelogram = |QPxQR|

 

[Drongoski]

Q. A parallelogram PQRS has three of its vertices at the points P(2,1,0), Q(-1,-1,1) and R(0,2,-1). Find the area of the parallelogram.

See corrected version below.

 

[daddythicclegs]

uh the answer that was given to me was 5 root 3

 

[Drongoski]

uh the answer that was given to me was 5 root 3

In that case my answer may be incorrect! Let me recheck.

 

[Drongoski]

Q. A parallelogram PQRS has three of its vertices at the points P(2,1,0), Q(-1,-1,1) and R(0,2,-1). Find the area of the parallelogram.

Correction

 

[5uckerberg]

See corrected version below.

I have a different way of tackling this question

Note that , and

So thus, then using the fact that which when multiplied by the length of units gives the perpendicular side of units.
The area of the parallelogram is similar to the rectangle so therefore all we gotta do is just multiply by the other length which is . To complete the question we will have