Draw the figure; let P and Q be on side AB of ABCD.
Then PQ is in triangles
PQA, PQC. PQD
Now do the same for the diagonal lines, as well as the other segments of AB
two points are placed on the same side of a square a segment is drawn from each of these point to each of the 2 vertices corners0 on the opposite side of the square how many triangles of all sizes are formed
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