MCQ
A point C is called the midpoint of a line segment $\overrightarrow{\text{AB}}$ if:
- A$\overrightarrow{\text{AC}}=\overrightarrow{\text{BC}}.$
- BC is an interior point of AB such that $\overrightarrow{\text{AC}}=\overrightarrow{\text{BC}}.$
- CAC + CB = AB.
- DC is an interior point of AB.
