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SELECT CASE
WHEN a + b <= c OR b + c <= a OR a + c <= b THEN 'Not A Triangle'
WHEN a = b AND b = c THEN 'Equilateral'
WHEN a=b OR b=c OR c=a THEN 'Isosceles'
ELSE 'Scalene'
END
from triangles;
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Type of Triangle
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SELECT CASE WHEN a + b <= c OR b + c <= a OR a + c <= b THEN 'Not A Triangle' WHEN a = b AND b = c THEN 'Equilateral' WHEN a=b OR b=c OR c=a THEN 'Isosceles' ELSE 'Scalene' END from triangles;