A.\(V = \dfrac{{{a^3}\sqrt 3 }}{2}\)
B.\(V = \dfrac{{{a^3}\sqrt 3 }}{3}\)
C.\(V = \dfrac{{{a^3}}}{6}\)
D.\(V = \dfrac{{{a^3}\sqrt 3 }}{6}\)

A.\(S = \dfrac{2}{3}\)
B.\(S = \dfrac{1}{2}\)
C.\(S = \dfrac{1}{3}\)
D.\(S = \dfrac{5}{6}\)

A.\(a + b + c =  - 12\)
B.\(a + b + c = 6\)
C.\(a + b + c = 12\)
D.\(a + b + c =  - 9\)

A.\(1\)
B.\(\dfrac{{10}}{3}\)
C.\( - 2\)
D.\(2\)

A.\(\dfrac{{64}}{{85}}\)
B.\(\dfrac{8}{3}\)
C.\(\dfrac{4}{3}\)
D.\(\dfrac{{256}}{{255}}\)

A.7
B.9
C.6
D.45

A.9
B.6
C.5
D.14

A.7
B.13
C.6
D.12

A.10
B.8
C.6
D.4

A.\(5.\)
B.\(3.\)
C.\(4.\)
D.\(7.\)