C Language Problem

Question X X (Programming) n, the perimeter of Given n points on the Euclidean plane with coordinates(xi,y), the area enclosed by the points is given by the formula: 1,2, a) Write a function definition that has three arguments, an array of x-coordinates, an array of y-coordinates and a value for n, the number of points. The function should compute the perimeter of the enclosed area as specified by the formula above. The header for your function should be: double perimeter (double x[], double y[l, int n) Note that you only have to write a function definition, not a main program. There should be no input or output statements in your function. b) Write a main program that reads pairs of coordinates from a file and then calls the function of part (a) to compute the perimeter. The file is organized as follows: the first line of the file has an integer value representing the number of points (n). The following n lines in the file each contain two real values representing the x and y coordinates of each point