Free Printable BÀI CỦ 12

1.

Diện tích xung quanh của hình nón là:

a)

$S_{xq}=\pi rl$

b)

$S_{xq}=2\pi rl$

c)

$S_{xq}=\pi r\left(l+r\right)$

d)

$S_{xq}=\frac{1}{3}\pi r^2h$

2.

Diện tích xung quanh của hình trụ là:

a)

$S_{xq}=\pi rl$

b)

$S_{xq}=2\pi rl$

c)

$S_{xq}=2\pi r\left(l+r\right)$

d)

$S_{xq}=\frac{1}{3}\pi r^2h$

3.

Diện tích toàn phần của hình trụ là:

a)

$S_{tp}=\pi rl$

b)

$S_{tp}=2\pi rl$

c)

$S_{tp}=2\pi r\left(l+r\right)$

d)

$S_{tp}=\frac{1}{3}\pi r^2h$

4.

Thể tích của hình trụ là:

a)

$V=\pi r^2h$

b)

$V=2\pi r^2h$

c)

$V=\pi rh$

d)

$V=\frac{1}{3}\pi r^2h$

5.

Diện tích toàn phần của hình nón là:

a)

$S_{tp}=\pi rl$

b)

$S_{tp}=2\pi rl$

c)

$S_{tp}=\pi r\left(l+r\right)$

d)

$S_{tp}=\frac{1}{3}\pi r^2h$

6.

Thể tích của hình nón là:

a)

$V=\pi rl$

b)

$V=2\pi rl$

c)

$V=\pi r\left(l+r\right)$

d)

$V=\frac{1}{3}\pi r^2h$

7.

Một hình nón có bán kính bằng 3 và đường sinh bằng 5. Thể tích của hình nón đó bằng:

a)

$\frac{5\pi}{3}$

b)

$15\pi$

c)

$5\pi$

d)

$12\pi$

8.

Hình trụ có bán kính bằng 2, đường sinh bằng 3, thể tích của hình trụ đó bằng:

a)

$\frac{\pi}{3}$

b)

$12\pi$

c)

$16\pi$

d)

$6\pi$

9.

Diện tích xung quanh của hình nón có chiều cao bằng 8 và đường sinh bằng 10 là:

a)

$62\pi$

b)

$65\pi$

c)

$80\pi$

d)

$60\pi$

10.

Diện tích của mặt cầu có bán kính r là:

a)

$2\pi r^2$

b)

$4\pi r^2$

c)

$4\pi r^3$

d)

$\pi r^2$

11.

Thể tích của khối cầu có bán kính r là:

a)

$\pi r^3$

b)

$\frac{1}{3}\pi r^3$

c)

$\frac{3}{4}\pi r^3$

d)

$\frac{4}{3}\pi r^3$

12.

Mặt cầu (S) có bán kính bằng 5 thì có diện tích bằng:

a)

$20\pi$

b)

$100\pi$

c)

$15\pi$

d)

$25\pi$

13.

Thể tích của khối cầu (S) có bán kính bằng 3 là:

a)

$3\pi$

b)

$12\pi$

c)

$36\pi$

d)

$25\pi$

14.

Một mặt cầu có diện tích bằng $45\pi$ thì bán kính của nó bằng:

a)

$\sqrt[]{5}$

b)

$3\ \sqrt[]{5}$

c)

$\frac{5\pi}{2}$

d)

$\frac{3\ \sqrt[]{5}}{2}$

15.

Một khối cầu có thể tích bằng $2304\pi$ thì diện tích bề mặt của khối cầu đó bằng:

a)

$567\pi$

b)

$576\pi$

c)

$765\pi$

d)

$500\pi$

16.

Một hình nón có bán kính bằng 2, chiều cao bằng 5 thì có diện tích xung quanh bằng:

a)

$2\pi\ \sqrt[]{29}$

b)

$4\pi\ \sqrt[]{29}$

c)

$2\pi\ \sqrt[]{21}$

d)

$4\pi\ \sqrt[]{21}$

17.

Một hình trụ có thể tích bằng $16\pi$ và có bán kính bằng 2 thì có diện tích xung quanh bằng:

a)

$16\pi$

b)

$8\pi$

c)

$32\pi$

d)

$12\pi$

18.

Một hình nón có đường sinh bằng 10 và chiều cao bằng 8 thì có diện tích toàn phần bằng:

a)

$90\pi$

b)

$96\pi$

c)

$192\pi$

d)

$80\pi$

19.

Hình nón có bán kính đáy r, đường sinh l và chiều cao h . Khẳng định nào sau đây sai ?

a)

$l^2=h^2+r^2$

b)

$h=\sqrt[]{l^2-r^2}$

c)

$r=\sqrt[]{l^2-h^2}$

d)

$l=\sqrt[]{h^2-r^2}$

BÀI CỦ 12

Total questions: 19

Worksheet time: 9mins

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