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"Many triangles II" problem answer
16 squares like this, each with 2 triangles 32
3 triangles like this in each row and column 24
4 squares like this (one in each corner), each with 2 triangles 8
4 triangles like this 4
There are 5 squares like this - one in the middle, one in each corner.

Each has 4 triangles like these two.
20
4 triangles like this 4
4 triangles like this 4
  TOTAL 96