Practica 3.2 Visual

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace PRACTICA3._2WINDOWS

{

public partial class Form1 : Form

{

float a, b, c, p;

double area;

public Form1()

{

InitializeComponent();

a = b = c = p =0;

area = 0;

}

private void label4_Click(object sender, EventArgs e)

{

}

private void button1_Click(object sender, EventArgs e)

{

textBox1.Clear();

textBox2.Clear();

textBox3.Clear();

textBox4.Clear();

}

private void button3_Click(object sender, EventArgs e)

{

Close();

}

private void button2_Click(object sender, EventArgs e)

{

a = float.Parse(textBox1.Text);

b = float.Parse(textBox2.Text);

c = float.Parse(textBox3.Text);

p = (a + b + c) / 2.0f;

area = Math.Sqrt(p * (p - a) * (p - b) * (p - c));

textBox4.Text = area.ToString();

}

}

}