If "The sum of the squares of a triangle's two sides equals the square of its longest side", then the triangle is a Right Angled Triangle.
In this case the above is not true, so clearly the triangle in question is not a Right Angled Triangle.
Therefore, 90 cannot be an angle of the triangle.
Answer is D
In this case the above is not true, so clearly the triangle in question is not a Right Angled Triangle.
Therefore, 90 cannot be an angle of the triangle.
Answer is D





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