Mathematics and Society - OS X Lion Server

BEING \tJTHE: MCDOL.E:Of: THINGS (ICut several differently shapedtriangles from heavyweightpaper. They should be about20 cm at the widest spot.1) Let the triangle swingfreely from the pin.2) Mark the point wherethe weighted stringcrosses the side ofthe triangle. Sketchthe line representingthe hanging thread.../,.3) Do the same for theother two vertices.Try balancing the figure at the point whereall lines intersect. Use the blunt end of (your pencil to balance on.THIS POINT IS THE. BALANCE. POINT OR CeNTER OF GRA\JITY.7) Find the meaning of the following terms.a) Angle bisectors of a triangle.b) Altitudes of a triangle.c) Medians of a triangle.Which of these will help you find a balance point of a triangle?II Cut a rectangle and a circle from the heavy paper. Using a plumb line, find thebalance point of the figures.Describe where the 'center of gravity is.(344