19 lines
800 B
C#
19 lines
800 B
C#
public static class Triangle
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{
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public static bool IsScalene(double side1, double side2, double side3) =>
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side1 != side2 && side2 != side3 && side1 != side3
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&& !IsDegenerate(side1, side2, side3);
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public static bool IsIsosceles(double side1, double side2, double side3) =>
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(side1 == side2 || side2 == side3 || side1 == side3)
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&& !IsDegenerate(side1, side2, side3);
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public static bool IsEquilateral(double side1, double side2, double side3) =>
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side1 == side2 && side2 == side3
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&& !IsDegenerate(side1, side2, side3);
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private static bool IsDegenerate(double side1, double side2, double side3) =>
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side1 == 0 || side2 == 0 || side3 == 0
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|| (side1 >= side2 + side3) || (side2 >= side1 + side3) || (side3 >= side1 + side2);
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}
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