A board game uses a triangular piece, measuring 3 inches on each side the travel version of the game uses a triangular in a proportional relationship to the original. It measures 0.5 inches on each side, identify the scale factor used to create the travel version of the piece.

6
3.5
1/6
-1/6

The scale factor used to create the travel version of the piece is 1/6.

To calculate this, we divide the length of the travel version (0.5 inches) by the length of the original (3 inches):

0.5 inches / 3 inches = 1/6