1.

Sum of three obtuse angle is​

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Answer:

In an OBTUSE triangle, if ONE angle measures more than 90°, then the sum of the remaining two ANGLES is less than 90°. Here, the triangle ABC is an obtuse triangle, as ∠A measures more than 90 DEGREES. Since, ∠A is 120 degrees, the sum of ∠B and ∠C will be less than 90° degrees.



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