Pat starts with two identical square pieces of paper. On the first one, she draws straight lines that divide the paper into a 3-by-3 grid of squares. The total length of the lines she draws is 18 cm.
On the second piece of paper, Pat draws straight lines that divide the paper into a 6-by-6 grid of squares.
What is the total length of the lines that Pat draws on the second piece of paper?
Well from the other post we know she draws 4 lines. 18cm/4 lines = 4.5 cm per line
also the paper is. 4.5 cm x 4.5 cm.
now can you do the 6 x 6. One? Hint: it takes 5 lines to divide into 6 spaces....