Question

If point A is between B and C then BA + AC = BC.

always
sometimes
never

Answer 1

always

Answer 2

Only if all 3 are collinear. if not then something like this happens:


so A' is not collinear (collinear means in a same line) so A'B+A'C not equal to BC. nut since A is collinear it lies on the shortest distance between B and C. so here its applicable.

In both cases of A and A', each point is 'between' B and C, but not everytime it happens. so Sometimes.