Solution

161117

Problem / game
Nine-Pin Triangles Back to problem
First name
Veer
School
Canary Wharf College Glenworth
Country
United Kingdom, UK
Age
0

The answer I got was 63 triangles. I know this because with a pair of pegs, I made 7 isosceles triangles. With that, there are 9 pairs of pegs so I did 9 x 7 = 63 triangles. My final answer was 63 triangles.