So this is what we have so far. If you look directly into the middle of our model, you will see a large triangle. One corner is pink, the second corner is orange and the third corner of it is yellow. Now for our project, on each side of our triangle(total of three sides), we are going to create a "square" using our modules.
Now lets add a yellow module onto the orange one. Then join the new pink and yellow modules together. This forms our square. Do you see it? The top left hand corner of the square is pink. The top right hand corner of the square is yellow. The bottom left hand corner is yellow. The bottom right hand corner is orange. So we have now completed a "square" using one of the sides of our central "Triangle". Repeat these steps for the second and third sides of our central "Triangle".