You are given a geometric mathematical question. Questions in this task often involve shapes and Geometric Relationships. You are also given 4 or 5 answer options (associated with "A", "B", "C", "D", "E"). Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D', 'E'. LaTeX mathematical format (the standard way to express mathematical expressions in the typesetting software known as LaTeX) is used to express equations. Each question is solvable with high school math knowledge.

[Q]: What is the perimeter of a triangle with vertices \((-1, 1)\), \((5, 1)\), and \((2, 5)\)?
(A)16 (B)13 (C)\(6 + 2\sqrt{7}\) (D)11 (E)\(6 + 2\sqrt{5}\)
[A]: A


[Q]: If the circumference of a circle is equal to the perimeter of a square whose sides are \(7t\), what is the radius of the circle?
(A)1 (B)2 (C)4 (D)\(\pi\) (E)\(2\pi\)
[A]: B


[Q]: If the average (arithmetic mean) of the measures of two angles of a quadrilateral is 60 degrees, what is the average of the measures of the other two angles?
(A)\(60\degree\) (B)\(90\degree\) (C)\(120\degree\) (D)\(180\degree\) (E)\(240\degree\)
[A]:
C