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angle bfc = 110 °
( angle of incidence = angle of reflection )
( according to exterior angle property )
∠i = ∠r + ∠110°
∠i = ∠i +∠110° ( angle of incidence = angle of reflection)
∠2i = 110°
∠i = 55°
Explanation:
∴ Angle of incidence is 55°
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