A.\(A{B_1},\,\,B{C_1},\,\,C{A_1}\)
B.\(A{A_1},\,\,B{B_1},\,\,C{C_1}\)
C.\(AB,\,\,{A_1}{B_1},\,\,{B_1}{C_1}\)
D.\(A{D_1},\,\,B{C_1},\,\,C{B_1}\)

A.\({A_1}{B_1},\,\,AB,\,\,{A_1}{D_1}\)
B.\({B_1}{C_1},\,\,AB,\,\,{A_1}{B_1}\)
C.\({B_1}{C_1},\,\,AD,\,\,{A_1}{D_1}\)
D.\({A_1}{B_1},\,\,{D_1}{C_1},\,\,DC\)

A.\(AB,\,\,{C_1}{D_1},\,\,{A_1}{B_1}\)
B.\({A_1}{B_1},\,\,AB,\,\,{A_1}{D_1}\)
C.\({B_1}{C_1},\,\,AD,\,\,{A_1}{D_1}\)
D.\(AB,\,\,D{D_1},\,\,C{C_1}\)

A.\(\left( {AB{B_1}{A_1}} \right)\)
B.\(\left( {AC{C_1}{A_1}} \right)\)
C.\(\left ({AD{D_1}{A_1}} \right)\)
D.\(\left( {BD{D_1}{B_1}} \right)\)

A.\(D{C_1} = 5,64cm\,\,;\,\,C{B_1} = 5cm\)
B.\(D{C_1} = 5,24cm\,\,;\,\,C{B_1} = 4cm\)
C.\(D{C_1} = 5,18cm\,\,;\,\,C{B_1} = 4cm\)
D.\(D{C_1} = 5,83cm\,\,;\,\,C{B_1} = 5cm\)

A.Có
B.Không
C.Không xác định được
D.

A.Có
B.Không
C.Không xác định được
D.

A.Có
B.Không
C.Không xác định được
D.

A.
B.
C.
D.

A.\(5\)
B.\(6\)
C.\(7\)
D.\(8\)