Question

In triangle ABC, angle A = 30,B = 40,C =110.The angles of the triangles formed by joining the mid points of the sides of this triangle are............................................................























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Answer 1

Answer :-

Given ,

In ∆ ABC

∠A = 30° , ∠B = 40° , ∠C = 110°

In Figure , BDEF , DCEF , DEAF are parallelogram So ,

∠B = ∠E = 40° [ ∠B & ∠E are opposite of parallelogram BDEF ]

∠C = ∠F = 110° [ ∠C & ∠F are opposite of parallelogram DCEF ]

∠A = ∠D = 30° [ ∠A & ∠D are opposite of parallelogram DEAF ]

Hence , ∠D = 30°

∠E = 40°

∠F = 110°

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