Side, Perimeter, and Area of Similar Figures.

Side, Perimeter, and Area Ratios of Similar Figures.
1. What is the relationship between the ratio of sides and the ratio of perimeters? 2. What is the relationship between the ratio of sides and the ratio of areas? 3. Complete the conjecture: If two polygons are similar with the lengths of corresponding sides in the ratio of a:b, then the ratio of their areas is _________.