Peter kept his pony in a rectangular paddock the perimeter of which was 240 metres and the area was 3200 square metres. What were the dimensions of the paddock?

Answer 1

you know that length + width = 120m
So just for grins, what are the factors of 32 which add up to 12?
Now, what are the factors of 3200 which add up to 120?

Answer 2

The factors of 32 are 8 and 4, since they add up to 12 anyways..
And so... the factors for 3200 are both 100 and 20 AND 40 and 80

Answer 3

wait.. where did 120metres come from?
sorry my head is a bit muddle up today... I would've been able to solve it

Answer 4

perimeter is 2(length+width)