1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Center of Gravity of a Triangle Proof

  1. Sep 16, 2009 #1
    1. The problem statement, all variables and given/known data

    The "center of gravity" of the triangle with vertices at A, B, and C is the point 1/3(A+B+C). Show that the center of gravity of a triangle is always the same as that of the triangle formed by the midpoints of its sides.

    2. Relevant equations

    3. The attempt at a solution

    I have no idea where to even begin. =/ I drew the triangle formed by the midpoints of the sides and called it DEF....
  2. jcsd
  3. Sep 16, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper

    The midpoint D of the side AB is D=(A+B)/2. Etc.
  4. Sep 16, 2009 #3
    Thanks for the hint!
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Center Gravity Triangle Date
Finding center of mass of solid Oct 14, 2017
Calculus Centers of Gravity Feb 25, 2010
Center of Gravity and probability Dec 23, 2009