I think CPhill answered this problem in Help 6.
There are 30 outcomes. 10 + 8 + 12 = 30
35 - 26 = 9
21 - 18 = 3
42 - 35 = 7
25 - 23 = 2
Matrix looks like [ 9 , 7 ,...]
[ 3 , 2 ,...]
D
Wow, guest. That is a lot of work. I think there is a more "compact" solution. (see below)
Is there a diagram? (my bad, i didnt know that a diagram was not needed, aka my trig skills = not that great)
In some cases, (2) also works because an equilateral triangle is a special type of isosceles triangle.
Answer to Q1 is 1
+777 
