Quiz about CLASS-IX MATHS

Question 1

THE DIAMETERS OF TWO CYLINDERS ARE IN THE RATIO 2:3 , THEN THE RATIO OF THEIR HEIGHTS, IF THEIR VOLUMES ARE THE SAME IS

Accepted Answer

9:4

Answer

9:5

Answer

6:5

Answer

3:2

Question 2

THE HEIGHT OF A TRIANGULAR PRISM IS 10cm.THE SIDES OF THEBASE QARE 3CM, 4CM, 5CM. THE THE T.S.A IS

Accepted Answer

$$132\ cm^2$$

Answer

$$126\ cm^2$$

Answer

$$72\ cm^2$$

Answer

$$30\ cm^2$$

Question 3

3. volume of sphere is

Accepted Answer

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

Answer

$$\frac{1}{8}\pi d^3$$

Answer

$$\frac{2}{3}\pi r^3$$

Answer

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

Question 4

4. If the volume of a right circular cone of height 9cm is $$48\pi$$ $$cm^3$$ , then the diameter of its base is

Accepted Answer

8cm

Answer

4cm

Answer

16cm

Answer

24cm

Question 5

The radius of a conical tent is 7m and its height is 10m, calculate the length of canvas used in making the tent if width of canvas is 2m ____ ( $$\pi=\frac{22}{7}$$ )

Accepted Answer

134.2 m

Answer

123.34 cm

Answer

134.2 $$m^2$$

Answer

130.23 cm

Question 6

The sum of the length , breadth and depth of cuboid is 19 cm and the diagonal is $$5\sqrt[]{5}$$ cm, then its surface area is

Accepted Answer

$$236\ cm^2$$

Answer

$$361\ cm^2$$

Answer

$$125\ cm^2$$

Answer

$$256\ cm^2$$

Question 7

The radius of a roller is 0.7m and it is 2m long, then the area covered by it in 10 revolutions is

Accepted Answer

$$88\ m^2$$

Answer

$$70\ m^2$$

Answer

$$80\ m^2$$

Answer

$$78\ m^2$$

Question 8

In the figure, if ADCE is a parallelogram , the the area of ECB is

Accepted Answer

$$3.5m^2$$

Answer

$$21m^2$$

Answer

$$15.5\ m^2$$

Answer

$$6.5\ m^2$$

Question 9

Perimeter of semi-circle whose radius 'a' is

Accepted Answer

both 2 & 3

Answer

$$\frac{36}{7}r$$

Answer

$$a\left(\pi+2\right)$$

Answer

$$\frac{36}{7}a$$

Question 10

In a parallelogram ABCD, DF is perpendicular to AB and BE is perpendicular to AD,AB=30cm and DF=6cm. If AD=20 cm, then BE=

Accepted Answer

9 cm

Answer

35 cm

Answer

9.5 cm

Answer

3.5 cm

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