Question

如图求解过程

谢谢求解题过程

Answer 1

∠BOC=∠AOB+∠AOC
所以∠BOM=(∠AOB+∠AOC)/2
∠AON=∠AOC/2
所以∠BON=∠AOB+∠AON
=∠AOB+∠AOC/2
所以∠MON=∠BON-∠BOM
=∠AOB+∠AOC/2-(∠AOB+∠AOC)/2
=(2∠AOB+∠AOC-∠AOB-∠AOC)/2
=∠AOB/2
=45度

Answer 2

图

Answer 3

∠MON
=∠MOC-∠NOC
=1/2∠BOC-1/2∠A0C
=1/2(∠BOC-∠AOC)
=1/2∠A0B
=45°