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From figure,
Angle AOC+Angle COD+Angle BOD=180°
(3x+7)°+(2x-19)°+x°=180°
3x°+7°+2x°-19°+x°=180°
6x°-12°=180°
6x°=180°+12°
6x°=192
x=192°/6°
x=32
Angle AOC=(3x+7)°
=(3 × 32+7)°
=(96+7)°
=103°
Angle COD=(2x-19)°
=(2 × 32 -19)°
=(64-19)°
=45°
Angle BOD=(x)°
=32°
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