On Friday, me and Silverio made a triangle. We started drawing it on patty paper and bisected each angle. Then we marked the midpoint and vertex onto the cardboard and re-drew the triangle. We labeled the center where all three lines intersect the centroid or center of gravity. Then we tried to balance the cardboard triangle on a pencil. That is called the median. You measure the length and make a proportion. It becomes the shorter line / the longer line.