1.

prove that the bisectors of the angles formed by two intersecting lines are perpendicular to each other. ​

Answer»

Step-by-step explanation:

Suppose TWO angles ABC and CBD are x and y.

x+y = 180 deg.

The bisector of ANGLE ABC (BE) and the bisector of angle CBD (CF) will FORM angle EBF = (x/2)+(y/2) = 180/2 = 90 deg.

Conclusion: If the angle bisectors of two adjacent angles are perpendicular to eaxh other, the adjacent angles are supplementary angle.



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