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.

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)\(2\pi\)
B

A triangle has a perimeter of 16 and one side of length 4. If the lengths of the other two sides are equal, what is the length of each of the other two sides?
(A)5 (B)6 (C)7 (D)8 (E)9
B

A rectangle has a perimeter equal to the circumference of a circle of radius 3. If the width of the rectangle is 3, what is its length?
(A)\(3\pi - 3\) (B)\(4.5\pi - 3\) (C)\(6\pi - 6\) (D)\(9\pi - 3\) (E)\(9\pi - 6\)

A