To find the new length in boxes when converting from a scale factor of 1 box = 6 meters to a scale factor of 1 box = 3 meters, we first need to calculate the actual length of the rectangle in meters.
The length of the rectangle is given as 7 boxes in the current scale (1 box = 6 meters):
- Actual length = 7 boxes × 6 meters/box = 42 meters.
Now, we want to convert this length into boxes for the new scale (1 box = 3 meters):
- New length in boxes = Actual length / 3 meters/box = 42 meters / 3 meters/box = 14 boxes.
Thus, the length in boxes of the new drawing will be 14 boxes.