Name: Jenna
Question: Imagine that you have two lengths, a and b. You can put the two lenghts together to get a + b and you can find the difference in their lengths, a  b. The blue lines are of length a and b (it doesn't matter which is which) and the green line is of length ab. From the diagram a + b a  b is twice the length of the smaller of a and b. Thus Does this expression work if a or b or both are negative or zero? Cheers,Penny
