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side lengths BC=a,CA=B,AB=c of a triangle ABC satisfy a^3÷b^3÷c^3/a÷b÷c= c^2 find angle BCA in degree measure
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B
AB+BC>AC
The sum of any two sides of a triangle is greater than the third side .
In △ABC,AB,BC and AC are the three sides ,
Now ,
AB+BC>AC
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