40 bài tập trắc nghiệm mặt cầu mức độ nhận biết

A \(144\pi \).

B \(36\pi \).

C \(288\pi \).

D \(48\pi \).

A \(4\pi \)

B \(\dfrac{\pi }{6}\)

C \(\dfrac{{4\pi }}{3}\)

D \(\dfrac{\pi }{{12}}\)

A \(\dfrac{{32\pi }}{3}\)

B \(\dfrac{{8\pi }}{3}\)

C \(\dfrac{{32{\pi ^3}}}{3}\)

D \(\dfrac{{8{\pi ^3}}}{3}\)

A \(72\pi \)

B \(144\pi \)

C \(36\pi \)

D \(288\pi \)

A \(\dfrac{{4\pi {a^3}}}{3}\)

B \(4\pi {a^2}\)

C \(\dfrac{1}{3}{a^3}\)

D \({a^2}\)

A \(144\pi \)

B \(72\pi \)

C \(48\pi \)

D \(288\pi \)

A \(128\pi \).

B \(64\pi \).

C \(\dfrac{{64}}{3}\pi \).

D \(16\pi \).

A \(S = \dfrac{3}{4}\pi {R^2}\)

B \(S = 2\pi {R^2}\)

C \(S = 4\pi {R^2}\)

D \(S = \dfrac{4}{3}\pi {R^2}\)

A \(\dfrac{{9\pi }}{4}.\)

B \(\dfrac{{9\pi }}{2}.\)

C \(36\pi .\)

D \(9\pi .\)

A \(9\pi .\)

B \(36\pi .\)

C \(18\pi .\)

D \(16\pi .\)

A \(\dfrac{4}{3}\pi {r^3}\)

B \(\dfrac{4}{3}\pi {r^2}\)

C \(4\pi {r^2}\)

D \(2\pi {r^3}\)

A \(16\pi \)

B \(\dfrac{{64}}{3}\pi \)

C \(128\pi \)

D \(64\pi \)

A \(2\sqrt 3 \).

B \(3\sqrt 2 \).

C \(3\).

D \(2\).

A \(S = \dfrac{{32\pi }}{3}\,\,c{m^2}\)

B \(S = 32\pi \,\,c{m^2}\)

C \(S = 16\pi \,\,c{m^2}\)

D \(S = \dfrac{{16\pi }}{3}\,\,c{m^2}\)

A \(\dfrac{4}{3}\pi {R^2}.\)

B \(\pi {R^2}.\)

C \(2\pi {R^2}.\)

D \(4\pi {R^2}.\)

A \(144\pi \left( {c{m^2}} \right).\)

B \(192\pi \left( {c{m^2}} \right).\)       

C \(576\left( {c{m^2}} \right).\)

D \(576\pi \left( {c{m^2}} \right).\)

A \(\dfrac{{9\pi {R^3}}}{8}\)  

B \(\dfrac{{27\pi {R^3}}}{8}\). 

C \(\dfrac{{9\pi {R^3}}}{2}\).

D \(36\pi {R^3}\)

A \(216\pi \left( {c{m^3}} \right)\)

B \(288\pi \left( {c{m^3}} \right)\)

C \(432\pi \left( {c{m^3}} \right)\)

D \(864\pi \left( {c{m^3}} \right)\)

A \(4\left( {c{m^2}} \right).\)

B \(16\left( {c{m^2}} \right).\)

C \(16\pi \left( {c{m^2}} \right).\)

D \(4\pi \left( {c{m^2}} \right).\)

A \(6\left( {cm} \right)\)

B \(3\left( {cm} \right)\)

C \(9\left( {cm} \right)\)

D \(\sqrt 6 \left( {cm} \right)\)

A \(V = \dfrac{{32\pi }}{3}\)

B

\(V = \dfrac{{33\pi }}{3}\)

C \(V = 16\pi \)

D \(V = 32\pi \)

A \(\pi {a^2}.\)   

B \(4\pi {a^2}.\)

C \(\frac{4}{3}\pi {a^2}.\)

D \(\frac{1}{3}\pi {a^2}.\)

A \(3cm.\)

B \(4,5cm.\)

C \(9cm.\)

D \(18cm.\)

A \(V = \dfrac{{4\pi {R^3}}}{3}\)

B \(V = 4\pi {R^2}\)

C \(V = \dfrac{{32\pi {R^3}}}{3}\)

D \(V = \dfrac{{24\pi {R^3}}}{3}\)

A \(\sqrt 3 \)

B \(3\)

C \(9\)

D \(3\sqrt 3 \)

A \(r = 2\).

B \(r = \dfrac{7}{3}\).

C \(r = \dfrac{8}{3}\)

D \(r = 3\).

A \(S = 12\pi \)

B \(S = 36\pi \)

C \(S = 48\pi \)

D \(S = 144\pi \)

A \(\dfrac{{4\pi {a^2}}}{3}\).

B \(16\pi {a^2}\).

C \(4\pi {a^2}\).

D \(\dfrac{{32\pi {a^2}}}{3}\).

A \(\frac{{32}}{3}\pi .\)            

B \(\frac{4}{3}\pi .\)      

C \(4\pi .\)

D \(16\pi .\)

A \(12{a^2}.\)

B \(\dfrac{{4\pi {a^2}\sqrt 3 }}{3}.\)

C \(12\pi {a^2}.\)

D \(4\pi {a^2}\sqrt 3 .\)

A \(\frac{{2\pi {a^3}}}{3}.\)

B \(4\pi {a^2}.\)

C \(\frac{{4\pi {a^3}}}{3}.\)     

D \(\frac{{4\pi {a^2}}}{3}.\)

A

  \(S = 36\pi \,(c{m^2}){\rm{ v\mu  }}V = 36\pi \,(c{m^3}).\)

B

\(S = 18\pi \,(c{m^2}){\rm{ v\`a  }}V = 108\pi \,(c{m^3}).\)

C

  \(S = 36\pi \,(c{m^2}){\rm{ v\`a  }}V = 108\pi \,(c{m^3}).\)

D   \(S = 18\pi \,(c{m^2}){\rm{ v\`a  }}V = 36\pi \,(c{m^3}).\)

A \(\dfrac{{32}}{3}\pi \)

B \(8\pi \)

C \(32\pi \)

D \(16\pi \)

A \(4\pi \)

B \(12\pi \)

C \(4\sqrt 3 \pi \)

D \(12\sqrt 3 \pi \)

A Một mặt cầu

B Một đường thẳng

C Một mặt phẳng

D Một mặt trụ