Question

In triangle ABC are A (-3, 1, 2), B (2, 4, 4), and C (1, 3, 6). The midpoints on BC and AC are called P and Q. Find the coordinates of the intersection point S between AP and BQ. Where do I even start?!

Answer 1

First find the points P and Q. Then find the equations of the lines BQ and AP. Then find where those lines intersect.