3. If the lengths of two sides of a triangle and the angle between them are known, the length of the third side can be calculated. Given the lengths of two sides (b and c) of a triangle, and the angle between them in degrees, the third side a is calculated as follows: a = b + c2bc cosa Write a script called thirdside that will prompt the user and read in values for b, c, and a (in degrees), and then calculate and print the value of a with 3 decimal places. The format of the output from the script should look exactly like this (with your own inputs for b, c, and a): thirdside Enter the first side: 2.2 Enter the second side: 4.4 Enter the angle between them: 50 The third side is 3.429