40 bài tập trắc nghiệm mặt trụ mức độ thông hiểu

A \(2a\)

B \(\dfrac{a}{2}\)

C \(a\)

D \(\dfrac{a}{4}\)

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

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

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

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

A \(3\)

B \(8\)

C \(12\)

D \(6\)

A \(5\pi {a^3}\)

B \(125\pi {a^3}\)

C \(65\pi {a^3}\)

D \(\dfrac{{65\pi {a^3}}}{3}\)

A \({S_{tp}} = 14\pi \)

B \({S_{tp}} = 28\pi \)

C \({S_{tp}} = 24\pi \)      

D \({S_{tp}} = 18\pi \)

A \(2\sqrt 3 \pi \)

B \(52\pi \)

C \(\dfrac{{52\pi }}{3}\)

D \(13\pi \)

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

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

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

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

A \(36\pi .\)

B \(12\pi .\)

C \(24\pi .\)

D \(48\pi .\)

A Chiều dài \(30\pi\,cm\), chiều rộng \(60\, cm\).

B Chiều dài \(60\pi\,cm\), chiều rộng \(60\, cm\)

C Chiều dài \(65\, cm\), chiều rộng \(60\, cm\)

D Chiều dài \(180\,cm\), chiều rộng \(60\,cm\)

A \(10\pi \)

B \(10\)

C \(5\pi \)

D \(5\)

A \(6\)

B \(18\pi \)

C \(12\pi \)

D \(6\pi \)

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

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

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

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

A \(4\)

B \(6\)

C \(12\)

D \(10\)

A \(6\pi \)

B \(4\pi \)

C \(12\pi \)

D \(3\pi \)

A \({S_{tp}} = 24\pi \).

B \({S_{tp}} = 8\pi \).

C .\({S_{tp}} = \dfrac{{81}}{2}\pi \).

D \({S_{tp}} = \dfrac{{33}}{2}\pi \).

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

B \(8\pi {a^3}\)

C \(\dfrac{{2\pi {a^3}}}{3}\)

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

A \({S_{xq}} = \dfrac{{2\pi {a^2}\sqrt 3 }}{5}\)

B \({S_{xq}} = \dfrac{{\pi {a^2}\sqrt 3 }}{3}\)         

C \({S_{xq}} = \dfrac{{\pi {a^2}\sqrt 3 }}{4}\)

D \({S_{xq}} = \dfrac{{\pi {a^2}\sqrt 3 }}{2}\)

A \(800\pi \,\,c{m^3}\)

B \(8000\pi \,\,c{m^3}\)

C \(400\pi \,\,c{m^3}\)

D \(2000\pi \,\,c{m^3}\)

A \(4\sqrt \pi  \)

B \(8\)

C \(4\)

D \(16\)

A \(16\sqrt 3 \)

B \(32\sqrt 3 \)

C \(32\sqrt 5 \)

D \(16\sqrt 5 \)

A \(1,8\,m\)

B \(1,4\,m\)

C \(2,2\,m\)

D \(1,6\,m\)

A \(V = 16\pi \)

B \(V = 64\pi \)

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

D \(V = 32\pi \)

A \(18\pi .\)

B \(36\pi .\)     

C \(54\pi .\)

D \(27\pi .\)

A \(9{a^2}\pi \)

B \(\dfrac{{27\pi {a^2}}}{2}\)

C \(\dfrac{{9\pi {a^2}}}{2}\)

D \(\dfrac{{13\pi {a^2}}}{6}\)

A \(8\pi {a^3}.\)

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

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

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

A 35\(\pi .\)     

B 125\(\pi .\)   

C 175\(\pi .\)   

D 70\(\pi .\)

A \({S_{xq}} = 18\pi \left( {c{m^2}} \right)\)

B \({S_{xq}} = 36\pi \left( {c{m^2}} \right)\)

C \({S_{xq}} = 72\pi \left( {c{m^2}} \right)\)

D \({S_{xq}} = 9\pi \left( {c{m^2}} \right)\)

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

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

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

D \(8\pi {a^2}.\)

A \(216 + 108\pi \left( {c{m^3}} \right).\)

B \(216 + 54\pi \left( {c{m^3}} \right).\)

C \(216 + 27\pi \left( {c{m^3}} \right).\)

D \(36 + 27\pi \left( {c{m^3}} \right).\)

A \(\frac{{\sqrt 3 }}{2}\,\,m.\)     

B \(3\,m.\)           

C \(4\,m.\)                              

D \(6\,m.\)

A \(V = 8\pi {a^3}\sqrt 3 .\)

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

C \(V = 2\pi {a^3}\sqrt 3 .\)

D \(V = \dfrac{{8\pi {a^3}\sqrt 3 }}{3}.\)  

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

B \(\frac{1}{3}\pi {b^2}a.\) 

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

D \(\pi {a^2}b.\)

A 19 000 (đồng).          

B 76 000 (đồng).          

C 38 000 (đồng).       

D 30 000 (đồng).

A Bán kính bằng hai lần đường sinh.                 

B Đường sinh bằng bán kính đáy.                                 

C Đường sinh bằng hai lần bán kính đáy.          

D Đường sinh bằng ba lần bán kính đáy.

A \(\left( {2 + 2\sqrt 2 } \right)\pi {a^2}.\)       

B \(\left( {4 + \sqrt 2 } \right)\pi {a^2}.\)

C \(\left( {2 + \sqrt 2 } \right)\pi {a^2}.\)

D \(\left( {1 + \sqrt 2 } \right)\pi {a^2}.\)

A \(Sa.\)

B \(\dfrac{1}{3}Sa.\). 

C \(\dfrac{1}{4}Sa.\)

D \(\dfrac{1}{2}Sa.\)

A \({S_{xq}} = \frac{{4\pi {R^2}}}{3}.\)

B \({S_{xq}} = \pi {R^2}.\)        

C \({S_{xq}} = 2\pi {R^2}.\)

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

A \(\pi \)

B \(2\pi \)

C \(4\pi \)

D \(3\pi \)

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

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

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

D \(8\pi {a^2}.\)

A 2a

B 4a

C a

D 3a