An irregular two dimensional shape is depicted below. Using the unit markings find the following:

1. The "center of mass" for the shape.
2. The point on the shape that lies furthest from the edge.

8    +---+---+---+   +---+---+
     |           |   |       |
7+---+           +---+       +---+
 |                               |
6+                               +
 |                               |
5+                           +---+
 |                           | 
4+                           +---+
 |                               |
3+                           +---+
 |                           |
2+                           +---+
 |                               |
1+                       +---+---+
 |                       |
0+---+---+---+---+---+---+
 0   1   2   3   4   5   6   7   8