Question

Use vectors to prove that the line joining the midpoints of two sides of a triangle is parallel to the third side and half its length. *I don't even know what the pictures looks like.*

Answer 1

something like this apparently...

Answer 2

so if we look at the original triangle in vector language we can think of the third side of the triangle as the vector sum of the other two sides...

Answer 3

wrong direction tho

Answer 4

\[\vec v_3=\vec v_1+\vec v_2\]what's in the wrong direction?

Answer 5

nvm , so v1/.5 +v2/.5=v3/.5?

Answer 6

*0.5
...and the angle is obviously the same since the vectors are in the same proportion and at the same angle