- #1
lucfuture
- 7
- 0
Homework Statement
http://delphi.zsg-rottenburg.de/gif/1la1_pyramide.gif
It says "M is the midpoint of BD and S is the center of triangle ABC. Express vector SM as a linear combination of A, B, and C."
The Attempt at a Solution
I think I am correct in saying that SM is half the magnitude of vector C and has the same angle with respect to the plane that triangle ABC is in.