How many diagonals can be drawn in the shape below?
7
8
9
10

2 from top left corner to bottom right corner and bottom left to top right.
2 from bottom right to middle left and middle right to bottom left.
2 from top left to middle right and middle left top top right.
4 from bottom right to middle right and bottom left to middle left and top left to         middle left and top right top middle right

2 + 2 + 2 = 6
or
2 x 3 = 6

6 + 4 =10

your answer is 10