matlab coding

Find all the errors and correct them in the following MATLAB script. The code is supposed to calculate the length of third side of a triangle using the law of cosines. Show the corrected code as your answer. % This script finds the length of the third edge of a triangle. Programmer: John Smith a 20 cm; edge1 b 11 cm; edge2 angle-alpha-30; % The angle between edge! and edge2 in degrees c"2-a^2 + b^2-2ab cos(angle-alpha); % The third edge disp(c)