Question
How many rays are represented in Fig.? Name them.
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Answer
We know that a ray has fixed starting point and it can be drawn to infinity. If we take 0 as starting point, we will have a ray in every given direction.
So, our rays are, $\overrightarrow{\text{OA}},\overrightarrow{\text{OB}},\overrightarrow{\text{OC}},\overrightarrow{\text{OD}},\overrightarrow{\text{OE}},\overrightarrow{\text{OF}},\overrightarrow{\text{OG}},\overrightarrow{\text{OH}}.$
Thus, the number of rays in the figure is 8.
So, our rays are, $\overrightarrow{\text{OA}},\overrightarrow{\text{OB}},\overrightarrow{\text{OC}},\overrightarrow{\text{OD}},\overrightarrow{\text{OE}},\overrightarrow{\text{OF}},\overrightarrow{\text{OG}},\overrightarrow{\text{OH}}.$
Thus, the number of rays in the figure is 8.
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