(ii) The key fact you have to use for the next bit is that if you have used cm to make the circle ( ) then you'll have cm of wire left to make the square. So that's the perimeter of the square. But we want it in terms of , so we simply say: the perimeter of the square is cm.
(iii) How do you find the length of one side of a square if you know its perimeter? Well just do that to and there's the answer. (Note: in algebra, when you're dividing by something, it's often easiest to write the result as a fraction. So , for instance, is usually written .}
(iv) Square your answer to part (iii).
(v) Add together your area answers to (i) and (iv).
Can you complete it now?