If ABC and DEF are two triangles such that Δ ABC≅ Δ FDE and AB =5 cm, ∠B = 40° and ∠A =80°, Then, which of the following is true?
In 
ABC,
∠A + ∠B + ∠C= 180
80° + 40°+ ∠C = 180°
∠C = 60°
Now, by c.p.c.t
AB = DF = 5cm
And
∠C = ∠E = 60°
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If ABC and DEF are two triangles such that Δ ABC≅ Δ FDE and AB =5 cm, ∠B = 40° and ∠A =80°, Then, which of the following is true?
In ABC,
∠A + ∠B + ∠C= 180
80° + 40°+ ∠C = 180°
∠C = 60°
Now, by c.p.c.t
AB = DF = 5cm
And
∠C = ∠E = 60°