Answer:
We need two pairs of corresponding angles.
Explanation:
Given that the triangle STU has been dilated to form triangle PQR.
Now, in order to prove the above two triangles similar there are 3 postulates from with which we can prove the two triangles similar. These postulates are
→ AA Similarity Postulate
→ SSS Similarity Postulate
→ SAS Similarity Postulate
Now the LEAST amount of information which is needed to prove similarity is AA Similarity i.e two pairs of corresponding angles.