b) Create a class named triangle. It takes cartesian coordinates for 3 corners of a triangle. The constructor calls a set function that accepts three sets of coordinates and verifies that each of these is in the first quadrant with no single x- or y-coordinate larger than 30. Use the function distance() in part (a) to find the length of each side and then write a function named as area() to computer the area of triangle using following hero's formula. 73 6- A = s (s-a) s(sa) (sb) (s c) y 01 4- 3- 2- 1- 0 S (x, y) 1 d = c a+b+c 2 X 2 - X = a 3 4 (X2, Y) |y - Y1 = b 5 (X2, y1) 6 +X 7