If in triangle ABC, Angle A = Angle B + Angle C , then write the shape of the given triangle.

right angled. suppose A=90 degree then A=B+C where b and c=45 each 
90=45+45
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Dear student,

A+B+C=180
Since A=B+C, A+A=180
2A=180
A=90
Therefore, the triangle is right angled

Regards
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