Physics, asked by sonalikumari1215, 11 months ago

Find DF and EG in cm when angle of incidence is 30°

Answers

Answered by subhadra177

Answer:

Angles opposite to equal sides of a triangle are equal, ... It is given that ∆ ABC ≅ ∆ FDE and AB = 5 cm, ∠B = 40° and ∠A = 80°. .... In Fig.7.6, BA ⊥ AC, DE ⊥ DF such that BA = DE.

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