A.\(S = \dfrac{{8084}}{{11}}\)
B.\(S = \dfrac{{22231}}{4}\)
C.\(S = \dfrac{{78819}}{4}\)
D.\(S = \dfrac{{78819}}{{11}}\)

A.\(\dfrac{{7 + \sqrt {17} }}{2}\)
B.\( - \dfrac{{7 + \sqrt {17} }}{2}\)
C.\(\dfrac{{7 - \sqrt {17} }}{2}\)
D.\(\dfrac{{ - 7 + \sqrt {17} }}{2}\)

A.\(7\)
B.\(3\)
C.\(5\)
D.\(6\)

A.\(4\)
B.\(18\)
C.\(\dfrac{{14}}{3}\)
D.\(\dfrac{{10}}{3}\)

A.\(\dfrac{{27\sqrt 2 }}{{16}}\)
B.\(\dfrac{{9\sqrt 2 }}{4}\)
C.\(\dfrac{{9\sqrt 2 }}{8}\)
D.\(\dfrac{{27}}{{16}}\)

A.
B.
C.
D.

A.
B.
C.
D.

A.
B.
C.
D.

A.\(\cos C = \dfrac{{56}}{{65}}\)
B.\(\cos C =  - \dfrac{{56}}{{65}}\)
C.\(\cos C = \dfrac{{16}}{{65}}\)
D.\(\cos C = \dfrac{{33}}{{65}}\)

A.\(1\)
B.\(0\)
C.\( - 1\)
D.\(\dfrac{{\sqrt 2 }}{2}\)