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In triangle ABC, angleA is equal to 120...

In triangle ABC, `angleA` is equal to `120^@` . There is a point D inside the triangle such that `angleDBC = 2 angleABD and angleDCB = 2angleACD` . What is the measure of `angleBDC` ?

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ADVANCED MATHS BY ABHINAY MATHS ENGLISH-GEOMETRY TRIANGLES-QUESTIONS
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