from tkinter import *
import math
root = Tk()
root.geometry("400x400")
root.resizable(0, 0)
root.config(bg="#0b6a7a")
root.title("Calcular Comprimento do Arco")
titulo = Label(text="Calcular Comprimento do Arco",
               font=("Arial", "18", "bold"),bg="#0b6a7a",fg="#8edfed")
titulo.place(relx=0.05, rely=0.05)
texto_sub1  = Label(text="Raio:",
                    font=("Arial", "15", "bold"),bg="#0b6a7a",fg="#8edfed")
texto_sub1.place(relx=0.35, rely=0.25)

texto_sub2 = Label(text="Ângulo em graus:",
                    font=("Arial", "15", "bold"),bg="#0b6a7a",fg="#8edfed")
texto_sub2.place(relx=0.1, rely=0.45)

Raio = DoubleVar()
Raio_entrada = Entry(textvariable=Raio,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Raio_entrada.place(relx=0.55, rely=0.25, relwidth=0.35)

Ângulo = DoubleVar()
Ângulo_entrada = Entry(textvariable=Ângulo,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
Ângulo_entrada.place(relx=0.55, rely=0.45, relwidth=0.35)
def limpar():
    Raio_entrada.delete(0, END)
    Ângulo_entrada.delete(0, END)
def app():
    a = Ângulo.get()
    r = Raio.get()
    angulo_em_radianos = math.radians(a)
    comprimento_arco = angulo_em_radianos * r
    mensagem = f"O comprimento do arco com \nraio {r} e ângulo {a} graus é:\n {angulo_em_radianos:.2f}"
    resultado.set(mensagem)

but1 = Button(text="Calcular", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.05, rely=0.6, relwidth=0.25, relheight=0.1)
but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.35, rely=0.6, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.65, rely=0.6, relwidth=0.25, relheight=0.1)

resultado = StringVar()
resultado_texto = Label(textvariable=resultado,
                           font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.75, relwidth=0.9,relheight=0.2)
root.mainloop()