from tkinter import *
root=Tk()
root.title("Àrea do Triângulo")
root.geometry("400x300")
root.resizable(False,False)
root.configure(background="orange")
def calcular():
vbase = base.get()
valtura = altura.get()
a = (vbase*valtura)/2
araund = round(a,2)
mensagem = f'A àrea do triângulo é de {araund}.'
area.set(mensagem)
def limpar():
entrada1.delete(0, END)
entrada2.delete(0, END)
base = DoubleVar()
altura = DoubleVar()
area = StringVar()
titulo = Label(text="Àrea do Triângulo",font=("times","18","bold"),bg="Orange")
titulo.place(relx=0.3,rely=0.05)
texto1 = Label(text="Altura",font=("arial","12","bold"),bg="Orange")
texto1.place(relx=0.3,rely=0.25)
entrada1 = Entry(textvariable=altura,font=("arial","12","bold"),bg="green",justify='center')
entrada1.place(relx=0.5,rely=0.25,relwidth=0.3)
texto2 = Label(text="Base",font=("arial","12","bold"),bg="Orange")
texto2.place(relx=0.3,rely=0.4)
entrada2 = Entry(textvariable=base,font=("arial","12","bold"),
bg="green",justify='center')
entrada2.place(relx=0.5,rely=0.4,relwidth=0.3)
resultado = Label(textvariable=area,font=("arial","13"),
bg="Orange",justify='center',fg="white")
resultado.place(relx=0.25,rely=0.75,relwidth=0.6)
#
but1 =Button(text="Calcular",font=("arial","12",'bold'),
bg="blue", command=calcular)
but1.place(relx=0.2,rely=0.55,relwidth=0.3,relheight=0.15)
but2 =Button(text="Limpar",font=("arial","12",'bold'),
bg="blue", command=limpar)
but2.place(relx=0.55,rely=0.55,relwidth=0.3,relheight=0.15)
root.mainloop()
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