Trắc nghiệm Hình học 12 Chương 1 Bài 3 Khái niệm về thể tích khối đa diện

A.  \(V = \frac{{{a^3}\sqrt 2 }}{3}\)  

B.  \(V = {a^3}\sqrt 2\) 

C.  \(V = \frac{{{a^3}}}{2}\)

D. \(V = \frac{{2\sqrt 3 {a^3}}}{3}\)

A.  \(V = \frac{{{a^3}\sqrt 3 }}{6}\) 

B.  \(V = \frac{{{a^3}\sqrt 3 }}{2}\) 

C.  \(V = \frac{{{a^3}\sqrt 3 }}{3}\)

D.  \(V = {a^3}\sqrt 3\)

A.  \(V = \frac{{{a^3}\sqrt 3 }}{2}\)

B.  \(V = \frac{{{a^3}\sqrt 3 }}{8}\)

C.  \(V = \frac{{{a^3}\sqrt 3 }}{16}\)

D.  \(V = \frac{{{a^3}\sqrt 3 }}{24}\)

A.  \(V = \frac{{{a^3}\sqrt 6 }}{{12}}\)

B.  \(V = \frac{{{a^3}\sqrt 6 }}{8}\)

C. \(V = \frac{{{a^3}\sqrt 6 }}{{4}}\)

D. \(V = \frac{{{a^3}\sqrt 6 }}{{2}}\)

A.  \(V=\frac{1}{6}\) 

B. \(V=\frac{1}{12}\)

C.  \(V=\frac{1}{3}\)

D.  \(V=\frac{2}{3}\)

A.  \(V = \frac{{{a^3}\sqrt 3 }}{{48}}\)

B.  \(V = \frac{{{a^3}\sqrt 2 }}{{48}}\)

C.  \(V = \frac{{{a^3}}}{{24}}\)

D.  \(V = \frac{{{a^3}\sqrt 2 }}{{24}}\)

A.  \(\frac{{{V_{(H)}}}}{{{V_{M.ABC}}}} = \frac{1}{6}\)

B. \(\frac{{{V_{(H)}}}}{{{V_{M.ABC}}}} = 6\)

C.  \(\frac{{{V_{(H)}}}}{{{V_{M.ABC}}}} = \frac{1}{5}\)

D.  \(\frac{{{V_{(H)}}}}{{{V_{M.ABC}}}} = 5\)

A.  \(V_1=\frac{V}{4}\)

B.  \(V_1=2V\)

C.  \(V_1=\frac{V}{2}\)

D.  \(V_1=\frac{V}{3}\)

A.  \(d\left( {A,(BCD)} \right) = \frac{6}{{\sqrt {34} }}\)

B. \(d\left( {A,(BCD)} \right) = \frac{{12}}{{\sqrt {34} }}\)

C.  \(d\left( {A,(BCD)} \right) = \frac{{4}}{{\sqrt {34} }}\)

D.  \(d\left( {A,(BCD)} \right) = \frac{{3}}{{\sqrt {34} }}\)

A.  \(h = \frac{{42}}{5}m\)

B.  \(h = \frac{{18}}{5}m\)

C.  \(h = \sqrt {34} m\)

D. \(h = \frac{{24}}{5}m\)

A. k=1/4

B. k=1/3

C. k=1/6

D. k=2/9

A. k=1/3

B. k=3/4

C. k=2/3

D. k=1

A. \(V = \frac{{\sqrt 3 }}{24}{a^3}\)

B. \(V = \frac{{\sqrt 2 }}{9}{a^3}\)

C. \(V = \frac{{\sqrt 2 }}{{12}}{a^3}\(

D. \(V = \frac{{\sqrt 2 }}{{24}}{a^3}\)

A. k=1/2

B. k=1/3

C. k=1/4

D. k=2/9

A. \(V = \frac{1}{8}{a^3}\)

B. \(V = \frac{{3\sqrt 3 }}{8}{a^3}\)

C. \(V = \frac{{\sqrt 3 }}{8}{a^3}\)

D. \(V = \frac{3}{8}{a^3}\)