Oriented angle measure

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In order to measure the oriented-angle from OA vector towards OB vector, 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 -180 (excluded) to 180.

If the unity angle of the figure is radian, this measure will lie in the range - π (excluded) to π.


The three points clicked must be named.

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


MathGraph32 will ask you a name for this measure.