Write the vertex and arms of angle of the figure given below.

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Solution

Finding the vertex and arms of angle:
The common initial point of the two rays forming an angle is called as vertex
In the given figure, $" O "$ is the vertex of an angle.
Rays forming the angles are called arms of the angle.
In the given figure, $" O B "$ and $" O A "$ are arms of the angle.
Hence, the given figure has vetrex $" O "$ , arms $" O B "$ and $" O A "$

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