Here is a question from the NEW 9-1 SAM with its mark scheme. Am I being too simple or the mark scheme is just making it "too complicated"? Reason: Really simple question, here is a SQUARE ABCE (told in the question). To find its area, ALL we need to know is the LENGTH of its side. So using pythagoras, it's sqrt(x^2+y^2). Hence the area of ABCD is x^2+y^2. IT'S SIMPLE! DEADY EASY!!! WHY does the mark scheme gives such a complicated method??? The way it's done it is to PROVE pythagoras. But the question is testing HOW TO USE pythagoras. What do you think?