Anusha Murali
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41. Type of Triangle
Write a query identifying the type of each record in the TRIANGLES table using its three side lengths. Output one of the following statements for each record in the table:
- Equilateral: It’s a triangle with 3 sides of equal length.
- Isosceles: It’s a triangle with 2 sides of equal length.
- Scalene: It’s a triangle with 3 sides of differing lengths.
- Not A Triangle: The given values of A, B, and C don’t form a triangle.
The TRIANGLES table is described as follows:
Each row in the table denotes the lengths of each of a triangle’s three sides.
Sample Input
Sample Output
Isosceles
Equilateral
Scalene
Not A Triangle
Explanation
Values in the tuple (20, 20, 23)form an Isosceles triangle, because A ≡ B. Values in the tuple (20, 20, 20) form an Equilateral triangle, because A ≡ B ≡ C. Values in the tuple (20, 21, 22) form a Scalene triangle, because A ≠ B ≠ C. Values in the tuple (13, 14, 30) cannot form a triangle because the combined value of sides A and B is not larger than that of side C.