Non-oriented angle measure

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In order to measure non-oriented angle type of AÔB, click on icon.


Click on A, O then B.

If the unity angle of the figure is degree, this measure will lie in the range 0 to 180.

If the unity angle of the figure is radian, this measure will lie in the range 0 to π.


The three points clicked must be named.

If they aren't they will be named by the tool.


In future calculus, this measure will be represented by AOB.