Which of the following statements is always true of similar polygons?
a. corresponding angles of similar figures have the same measure.

b. the lengths of corresponding sides form equivalent ratios.
c. the lengths of corresponding sides have the same measure.
d. both (a) and (b)

we'll this would mean that the dunk tank and the bounce house are the same for 20 hours because the 2 represents that the two activities, and the 20 represents the amount of hours they both are. so with this said, it means that the answer is c. the costs for a dunk tank and bounce house are the same for 20 hours.

c.the costs for a dunk tank and bounce house are the same for 20 hours.

hope this .