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+# programme to calculate the Area of a triangle as an exercise %0A# by Prasith %0A%0A#qpy:console%0A#qpy:2 %0A%0Aimport math%0A%0Adef main():%0A    print%0A    print %22This app will Calculate the Area of a triangle based on the lengths of it's sides.%22%0A    print%0A    a, b, c = input(%22Please enter the lengths of the sides separated by a coma (a,b,c): %22)%0A    s = (a + b + c)/2%0A    A = math.sqrt(s*(s-a)*(s-b)*(s-c))%0A    A = format(A, '.3f')%0A    print %22The area of the triangle is%22,A%0A    print%0A    inp = raw_input('Wanna try again (y/n)? ')%0A    if inp == 'y':%0A      main()%0A    %0Amain()%0A

Create triangle_area_calculator.py