Question

the principle stating that corresponding sides of similar triangles are proportional is known as
the congruence criterion that requires three pairs of corresponding sides to be equal is called
the similarity criterion that requires two pairs of corresponding angles to be equal is called

Explanation:

1. For the first question, in geometry, the property of similar - triangles having proportional corresponding sides is the similarity principle.
2. For the second question, the congruence criterion with three pairs of equal corresponding sides is SSS (Side - Side - Side) in geometry.
3. For the third question, the similarity criterion with two pairs of equal corresponding angles is AA (Angle - Angle) in geometry.

Answer:

1. Similarity principle
2. SSS (Side - Side - Side)
3. AA (Angle - Angle)