The sides of a polygon are 3, 5, 4, and 6. the shortest side of a similar polygon is 9. find the ratio of their perimeters.

1/4
1/3
2/3
4/9

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π