Question

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Answer 1

Answer:

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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