Question

1. what must be true about the corresponding side lengths of similar figures?

a. they are congruent
b. they are equal
c. they are proportional
d. they are perpendicular

Explanation:

Similar figures have the same shape but not necessarily the same size. The ratio of the corresponding side - lengths of similar figures is constant, which means they are proportional. Congruent figures have equal side - lengths. Equal side - lengths are a special case of proportional side - lengths (with a ratio of 1:1). Perpendicularity has nothing to do with the property of side - lengths of similar figures.

Answer:

C. They are proportional