Draw Pentagon using C#. For more details: https://kb.aspose.com/drawing/net/draw-pentagon-using-csharp

Draw Pentagon using C#.cs

using System;
using Aspose.Drawing;

class PentagonDrawer
{
    static void Main()
    {

        var drawingLicense = new License();
        drawingLicense.SetLicense("license.lic"); // Set the Aspose license

        // Define the pentagon's parameters        
        int len = 100;
        double circumcircleRadius = len / (2 * Math.Sin(Math.PI / 5));
        int canvasCenterX = 100;
        int canvasCenterY = 100;

        // Calculate the vertices of the pentagon
        PointF[] vertices = new PointF[5];
        for (int vertexIndex = 0; vertexIndex < 5; vertexIndex++)
        {
            double angleRadians = 2 * Math.PI * vertexIndex / 5 - Math.PI / 2; // Rotate to start from top
            float xCoordinate = (float)(canvasCenterX + circumcircleRadius * Math.Cos(angleRadians));
            float yCoordinate = (float)(canvasCenterY + circumcircleRadius * Math.Sin(angleRadians));
            vertices[vertexIndex] = new PointF(xCoordinate, yCoordinate);
        }

        // Create and save the pentagon image
        using (Bitmap canvas = new Bitmap(200, 200))
        using (Graphics graphicsContext = Graphics.FromImage(canvas))
        {
            graphicsContext.Clear(Color.Blue); // Set background color
            graphicsContext.FillPolygon(Brushes.Cyan, vertices); // Fill pentagon with color
            // graphicsContext.DrawPolygon(Pens.Black, vertices); // Optional outline
            canvas.Save("pentagon.png"); // Save the image to file
        }
    }
}