Jenny's Centroid Triangle

Here is a picture of a cardboard triangle and it is also being balanced of a pencil. On July 20, 2007, I worked with Susan L. Before we started on the cardboard triangle, we draw a picture on the patty paper. To figure out the centroid of the triangle on the patty paper, we fold each corner to the vertex. After we fold all the 3 angles, there is a place where it intersected which called a median. Then you make an angle bisector to the midpoint to all the 3 triangle to find out the centroid. Also you should trace the patty paper by marking the points on the cardboard. Then you connects every points which should look exactly the same thing. However you wants to figure out the shortest and longest distance you needs to figure out the lengths of each segments. You needs to do the shortest over the longest distance for each segment. The proportion tells the golden ratio of the triangle. All the segments should be the same fraction. Then we used a pencil to balanced it. When we figure out our segment it was one half. It was also really fun that we could decorated and we label it.