Question

In $\angle$ROP, vertex is

• A. R
• B. P
• C. O
• D. none of these

Answer 1

The correct option is C O

$\Rightarrow$ A vertex is the point where two straight rays or line segments meet.

$\Rightarrow$ So, here we can see ray $OR$ and ray $OP$ joint at a point $O$.

$\therefore$ $O$ is a vertex of $\angle ROP$.