Figure 1; 6 toothpicks
figure 2; 12 toothpicks
figure 3; 18 toothpicks
they count by sixes for the toothpicks.
I also need: an expression for the total number of toothpicks in each figure compared to the number in the perimeter of each figure?
I have to show my thinking on both questions please help I'm in gr 7 and stiupid. -.-