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)

The correct answer among all the other choices is D. both (a) and (b). The statements that are always true of similar polygons are corresponding angles of similar figures have the same measure and the lengths of corresponding sides form equivalent ratios. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 

9sandwiches per hour

It’s either a or c as the answer.