private void btn_Perimetro_Click(object sender, EventArgs e)
{
Cls_Operaciones perime = new Cls_Operaciones();
perime.altura_t = Convert.ToInt32(txt_Altura.Text);
perime.base_t = Convert.ToInt32(txt_Base.Text);
double perimetroe_m = perime.Calc_Perimetro();
txt_Perimetro.Text = Convert.ToString(perimetroe_m);
}
private void btn_Area_Click(object sender, EventArgs e)
{
Cls_Operaciones areaop = new Cls_Operaciones();
areaop.altura_t = Convert.ToInt32(txt_Altura.Text);
areaop.base_t = Convert.ToInt32(txt_Base.Text);
double area_m = areaop.Calc_Area();
txt_Area.Text = Convert.ToString(area_m);
}