Having trouble with this matlab question. Mostly, the half circle part.

Write a complete MATLAB m-file script that calculates the area and perimeter of a field defined by a square of size L conjoined with a semi-circle of the same diameter (see picture below). Your program should define Las a constant and compute both the Area and Perimeter of the field. For example, with L-100, your script would compute an area of 13927 and a perimeter of 457. Write MATLAB code