Here is a ray $\overrightarrow{OA}$. It starts at $O$ and passes through the point $A$. It also passes through the point $B.$

Can you name it as $\overrightarrow{OB}$ ? Why?

Here is a ray $\overrightarrow{OA}$. It starts at $O$ and passes through the point $A$. It also passes through the point $B.$

Can you write the ray $\overrightarrow{OA}$ as $\overrightarrow{AO}$ ? Why? Why not?

Join the points given below. Name the line segments so formed in the figure.

Join the points given below. Name the line segments so formed in the figure.

Name any five points from the figure.