17 lines
517 B
C#
17 lines
517 B
C#
using System;
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using System.Globalization;
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class TriangleArea
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{
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static void Main()
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{
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Console.WriteLine("enter perimeter: ");
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double p = double.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);
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double a = p / 3.0;
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double s = Math.Sqrt((1.5 * a) * (0.5 * a) * (0.5 * a) * (0.5 * a));
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Console.WriteLine("side\tarea");
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Console.WriteLine("{0}\t{1}", a.ToString("F2", CultureInfo.InvariantCulture), s.ToString("F2", CultureInfo.InvariantCulture));
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}
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}
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