Bài toán Hình Học
mình chưa test được tọa độ 4 đỉnh hình vuông ai biết giúp mình nha.

Code:


using System;
class Diem
{
    public Diem(float x, float y)
    {
        this.x = x;
        this.y = y;
    }

    public float X
    {
        get { return x; }
        set { x = value; }
    }

    public float Y
    {
        get { return y; }
        set { y = value; }
    }

    float x;
    float y;
}

CODE:

Code:


using System;
abstract class HinhHoc
{
    public abstract  float DienTich();
    public abstract  float ChuVi();

}


CODE:
using System;
class HinhChuNhat : HinhHoc
{
    public HinhChuNhat(Diem gocTrenBenTrai,float chieuNgang,float chieuCao)
    {
        this.gocTrenBenTrai = gocTrenBenTrai;
        this.chieuNgang = chieuNgang;
        this.chieuCao = chieuCao;
    }

    public Diem GocTrenBenTrai
    {
        get { return gocTrenBenTrai; }
        set { gocTrenBenTrai = value; }
    }

    public float ChieuNgang
    {
        get { return chieuNgang; }
        set { chieuNgang = value; }
    }

    public float ChieuCao
    {
        get { return chieuCao; }
        set { chieuCao = value; }
    }

    public override float ChuVi()
    {
        return (chieuCao + chieuNgang) * 2;
    }

    public override float DienTich()
    {
        return chieuNgang * chieuCao;
    }

    public Diem GetTamGiac()
    {
        float a = gocTrenBenTrai.X + chieuNgang / 2;
        float b = gocTrenBenTrai.Y + chieuCao / 2;
        return new Diem(a, b);
    }

    public Diem[] GetDinh()
    {
        Diem[] Dinh = new Diem[4];
        Dinh[0]= new Diem(gocTrenBenTrai.X, gocTrenBenTrai.Y);
        Dinh[1]= new Diem(gocTrenBenTrai.X, gocTrenBenTrai.X + chieuNgang);
        Dinh[2]= new Diem(gocTrenBenTrai.X, gocTrenBenTrai.Y + chieuCao);
        Dinh[3]= new Diem(gocTrenBenTrai.X+chieuNgang,gocTrenBenTrai.Y+chieuCao);
        return Dinh;
    }
   

    Diem gocTrenBenTrai;
    float chieuNgang;
    float chieuCao;
}

CODE:

Code:


using System;
class HinhTron : HinhHoc
{
    public HinhTron(Diem tam, float banKinh)
    {
        this.tam = tam;
        this.banKinh = banKinh;
    }

    public Diem SetTam
    {
        set {tam=value;}
    }

    public float BanKinh
    {
        set { banKinh = value; }
    }

    public override float ChuVi()
    {
        return (float)(2*Math.PI * banKinh);
    }

    public override float DienTich()
    {
        return (float)(Math.PI * banKinh * banKinh);
    }

    public float DienTichHinhVuongNgoaiTiep()
    {
        HinhChuNhat hcn = new HinhChuNhat(new Diem(tam.X - banKinh, tam.Y - banKinh), banKinh, banKinh);
        return hcn.DienTich();
    }

    public float ChuViHinhVuongNoiTiepHinhTron()
    {
        HinhChuNhat hcn = new HinhChuNhat(new Diem(tam.X - banKinh / 2, tam.Y - banKinh / 2),(float)( banKinh * Math.Sqrt(2) ),(float) (banKinh * Math.Sqrt(2)));
        return hcn.ChuVi();
    }

    public float DienTichHinhVuongNoiTiepTrongDuongTronNoiTiepCuaCauLienTren()
    {
        HinhChuNhat hcn = new HinhChuNhat(new Diem(tam.X - banKinh / 4, tam.Y - banKinh / 4), (float)(banKinh * Math.Sqrt(2)/2), (float)(banKinh * Math.Sqrt(2)/2));
        return hcn.DienTich();
    }

    public Diem ToaDoTam()
    {
        return tam;
    }

    public Diem DinhTrenBenTraiHinhVuong()
    {
        return new Diem(tam.X - banKinh / 4, tam.Y - banKinh / 4);
    }

    public float CanhHinhVuong()
    {
        return (float)(banKinh * Math.Sqrt(2) / 2);
    }
    Diem tam;
    float banKinh;
}

Code:

using System;
class HinhBinhHanh : HinhChuNhat
{
    public HinhBinhHanh(Diem gocTrenBenTrai, float chieuNgang, float chieuCao,float soDoGocTrong)
        :base(gocTrenBenTrai,chieuNgang,chieuCao)
    {
        this.soDoGocTrong = soDoGocTrong;
    }

    public override float ChuVi()
    {
      return  base.ChuVi();
    }

    public override float DienTich()
    {
        return (float)(Math.Abs(base.DienTich() * Math.Sin(soDoGocTrong)));
    }

    float soDoGocTrong;
}

Code:


using System;
class CungTron : HinhTron
{
    public CungTron(Diem tam, float banKinh, float gocDoGocCung)
        :base(tam,banKinh)
    {
        this.gocDoGocCung = gocDoGocCung;
    }

    public override float ChuVi()
    {
        return base.ChuVi() * gocDoGocCung / 360 + (float)(base.ChuVi() / Math.PI);
    }
    public override float DienTich()
    {
        return base.DienTich() * gocDoGocCung / 360;
    }

    float gocDoGocCung;
}

Code:


using System;
class Tester
{
    public static void Main()
    {
        // hinh chu nhat
        HinhChuNhat hcn = new HinhChuNhat(new Diem(3, 4), 4, 2);
        Console.WriteLine("Chu vi hinh chu nhat: "+hcn.ChuVi());
        Console.WriteLine("Dien tich hinh chu nhat: "+hcn.DienTich());
        Console.WriteLine("Tam hinh chu nhat: ({0},{1}) ", hcn.GetTamGiac().X, hcn.GetTamGiac().Y);
        Console.WriteLine("Toa do 4 dinh hinh chu nhat");
        //for (int i = 0; i < 4; i++)
        //    Console.WriteLine("Dinh {0} : ({1},{2})", i, hcn.GetDinh().);

            //hinh tron
            Console.WriteLine("");
        HinhTron ht = new HinhTron(new Diem(3, 4), 4);
        Console.WriteLine("Dien tich hinh tron: "+ht.DienTich());
        Console.WriteLine("Chu vi hinh tron: "+ht.ChuVi());
        Console.WriteLine("Dien tich hinh vuong ngoai tiep hinh tron: "+ht.DienTichHinhVuongNgoaiTiep());
        Console.WriteLine("Chu vi hinh vuong noi tiep hinh tron: " + ht.ChuViHinhVuongNoiTiepHinhTron());
        Console.WriteLine("Dien tich hinh vuong noi tiep hinh tron noi tiep cau lien tren: " + ht.DienTichHinhVuongNoiTiepTrongDuongTronNoiTiepCuaCauLienTren());
        Console.WriteLine("Toa do tam hinh vuong cua cau lien tren: ({0},{1})",ht.ToaDoTam().X,ht.ToaDoTam().Y);
        Console.WriteLine("Dinh tren ben trai hinh vuong cua cau lien tren: ({0},{1})",ht.DinhTrenBenTraiHinhVuong().X,ht.DinhTrenBenTraiHinhVuong().Y);
        Console.WriteLine("Do dai canh hinh vuong cua cau lien tren: "+ht.CanhHinhVuong());

        //hinh binh hanh
        Console.WriteLine("");
        HinhBinhHanh hbh=new HinhBinhHanh(new Diem(3,4),4,2,60);
        Console.WriteLine("Dien tich hinh binh hanh: " + hbh.DienTich());
        Console.WriteLine("Chu vi hinh binh hanh: " + hbh.ChuVi());

        //cung tron
        Console.WriteLine("");
        CungTron ct = new CungTron(new Diem(3, 4), 5, 80);
        Console.WriteLine("Chu vi cung tron: " + ct.ChuVi());
        Console.WriteLine("Dien tich cung tron: " + ct.DienTich());

        Console.ReadKey();
    }
}

Trong lúc test tọa độ bạn sửa lại thành
CODE:

Code:


 for (int i = 0; i < 4; i++)
            Console.WriteLine("Dinh " + i + ": "+ "(" + hcn.GetDinh()[i].X + "," + hcn.GetDinh()[i].Y + ")");


Là ok