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OPTION (D) 60°...........
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Question given :
In the adjacent figure the measure of Angle A is ,
- 30°
- 45°
- 90°
- 60°
Required solution :
Let us take the angle along with Angle C be x ,
Now by linear pair property we get ,
- x + 120° = 180°
- x = 180° - 120°
- x = 60°
Now by exterior angle property we have ,
- Angle BAC + Angle ACB = 120°
- Angle BAC + 60° = 120°
- Angle BAC = 120 - 60
- Angle BAC = 60°
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