The lengths of a right-angled triangle are (x + 2) cm, (5x - 1) cm and 5x cm. (i) Form an equation in x and show that it reduces to x² - 6x + 5 = 0. (ii) Solve the equation x² - 6x + 5 = 0. (iii) Find the area and the perimeter of the triangle for each value of x.