python help please!

1. Write a Python function called "triangle.py" with three inputs and three outputs. The inputs are the lengths of the three sides of a triangle and the outputs are the angles in degrees of side opposite to the length. If the user fails to enter a value for the length of one, two or three sides, the function needs to prompts the user for the unknown lengths. For the sides of a triangle (a, b, and c), use the law of cosines to find the angles (A, B, and C) cos(C) = a2+b2-c2 cos(A)- bte cos(B)+a2-b 2ab b-a COS 2bc COS 2ac Besides the function output, use print statements to print the sides a, b, and c and the angles in degrees A, B, and C