Which triangle, PQR or FGH, seems similar to triangle ABC? Why?

We can't see those triangles.

To determine which triangle, PQR or FGH, seems similar to triangle ABC, we need to compare their corresponding angles.

First, we need to identify the corresponding angles in each triangle. Corresponding angles are angles that are in the same relative position in two different triangles when the triangles are compared.

To find corresponding angles, match the vertices of triangle ABC to the vertices of triangles PQR and FGH. For example, vertex A in triangle ABC corresponds to vertex P in triangle PQR and vertex F in triangle FGH. Similarly, vertex B corresponds to vertex Q in triangle PQR and vertex G in triangle FGH, and vertex C corresponds to vertex R in triangle PQR and vertex H in triangle FGH.

Once you have identified the corresponding angles, compare their measures. If the measures of the corresponding angles in triangle PQR are equal to the measures of the corresponding angles in triangle ABC, then triangle PQR is similar to triangle ABC. Similarly, if the measures of the corresponding angles in triangle FGH are equal to the measures of the corresponding angles in triangle ABC, then triangle FGH is similar to triangle ABC.

By performing this comparison, you can determine which triangle, PQR or FGH, seems similar to triangle ABC based on the equality of corresponding angles.