Question

The shortest sides of two similar polygons have lengths in the ratio 2:5. The perimeter of the smaller polygon is 20. The perimeter of the larger polygon is

Answer 1

50
100
125 ??????????????????????????????????????????

Answer 2

If two polygons are similar, then the ratio of corresponding sides is the scale factor.
The scale factor is the same ratio as that of any corresponding "linear" parts of the two polygons.

So, 2 is to 5 as 20 is to p where p is the perimeter of the larger polygon.

2/5 = 20/p
Cross multiply and solve for p.

Answer 3

Post what you get and I'll check it if you like.

Answer 4

@autumnpoteet

Answer 5

would it be 50?

Answer 6

That is what I got, 50.

Answer 7

@autumnpoteet Go look at that diameter question and let's wrap it up.