One polygon has a side of length 3 feet. A similar polygon has a corresponding side of length 9 feet. The ratio of the perimeter of the smaller polygon to the larger is

3/1
1/6
1/3

Question

One polygon has a side of length 3 feet. A similar polygon has a corresponding side of length 9 feet. The ratio of the perimeter of the smaller polygon to the larger is

3/1
1/6
1/3

directrix · Answer

@breton   

If two polygons are similar, the scale factor is also the ratio of the perimeters.

The scale factor from small to large of the polygons is 3/9. So, that is the ratio of the perimeters as well. Simplify 3/9 and you'll see the result as one of your options.