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SELECT
IIF(A + B <= C OR B + C <= A OR A + C <= B, 'Not A Triangle',
IIF(A = B AND B = C, 'Equilateral',
IIF(A = B OR B = C OR A = C, 'Isosceles', 'Scalene')
)
) AS TriangleType
FROM Triangles;
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Type of Triangle
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SELECT IIF(A + B <= C OR B + C <= A OR A + C <= B, 'Not A Triangle', IIF(A = B AND B = C, 'Equilateral', IIF(A = B OR B = C OR A = C, 'Isosceles', 'Scalene') ) ) AS TriangleType FROM Triangles;