Based on the information given, it should be noted that the angle of fire in standard position will be 120°.
From the complete information, it should be noted that the image shows that shooting angles arrangements. Also, π = 180°.
In this case, the value of the angle will be:
= 12π/18
= (12 × 180) / 18
= 12 × 10
= 120°
In conclusion, the correct option is 120°.
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