Question

How to identify acute and obtuse angle bisector of two lines?

Answer 1

by using degrees if it is less than 90 degrees it is acute angle .of it is greater than 180 degrees it is obtuse angle

Answer 2

It is very simple to determine whether the bisector is an acute angle bisector or an obtuse angle bisector. Compute the angle between the the initial line and one of the bisectors. Suppose that angle is θ. Then find tangent of this angle θ.

In case |tan θ| < 1, then we have 2θ < 90° and so this represents the acute angle bisector.

On the other hand, if |tan θ| > 1, then this represents the obtuse angle bisector.

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