If X is the area of any triangle-PQR and you make a hole in the center of this triangle by first joining the midpoints of each side to create smaller triangle-STU and then again joining the midpoints of triangle-STU to create the hole in the center of this triangle, it would create a donut something like this:

          Q 
         / \
        /   \
       /     \
    S /_______\ U
     / \  A  / \
    /   \/_\/   \
   /     \ /     \
P /_______V_______\ R
          T

What is the area of the triangle donut in terms of X?

          A
         / \
        /   \
       /     \
      /       \
     /    A    \
    /    /_\    \
   /             \
  /_______________\

<br><br>

this is the triangle donut

Posted by tanx on 2006-01-04 14:12:59