7. First drop down menu answer choices A. Circumcenter B. IncenterC. Centroid D. Orthocenter Second drop down menu answer choices A. Sides B. Vertices C. Midpoints of the sides

1) As we were told the swing set must be equidistant from the vertices of that triangle.
2) So we can state that the set of swings must be at the:
[tex]A.Circumcenter[/tex]For it is equidistant from their vertices.
[tex]B)\: Vertices[/tex]Thus, that is the answer.