9th
grade

Mathematics

55%

accuracy

666

plays

ankur pathania

4 years

Mathematics

9th

grade

SURFACE AREAS AND VOLUMES

ankur pathania

666
plays

20 questions

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1. Multiple Choice
5 seconds
1 pt
Formula for calculating total surface area of cuboid is
2(l+b) h + lb
2(lb + bh + lh)
2(lb + lh + lb)
2lb + bh + lh
2. Multiple Choice
5 seconds
1 pt
Formula for curved surface area of cylinder
$2\pi r^2h$
$2\pi rh$
$2\pi r^2h$
$2\pi r$
3. Multiple Choice
5 seconds
1 pt
Formula for curved surface area of cone is
$2\pi r$
$2\pi h$
$\pi rl$
$\pi rh$
4. Multiple Choice
5 seconds
1 pt
slant height, $l=$
$r+h$
$r^2+h^2$
$\sqrt{r+h}$
$\sqrt{r^2+h^2}$
5. Multiple Choice
5 seconds
1 pt
Formula for calculating total surface area of cone is
$\pi r\left(l+r\right)$
$2\pi\left(l+r\right)$
$2\pi\left(h+r\right)$
$\pi\left(l+r\right)h$
6. Multiple Choice
5 seconds
1 pt
Formula for volume of cone is
$\pi r^2h$
$\frac{1}{3}\pi rh$
$\frac{1}{3}\pi r^2h$
$\pi rh^2$
7. Multiple Choice
5 seconds
1 pt
Formula for calculating volume of hemisphere is
$\frac{4}{3}\pi r^3$
$\frac{2}{3}\pi r^2$
$\frac{4}{3}\pi r^2$
$\frac{2}{3}\pi r^3$
8. Multiple Choice
30 seconds
1 pt
A plastic box 5m long,4 m wide and 3 m deep,is to be made.Ignoring the thickness of the plastic sheet, determine the area of the sheet required for making the box.
74 sqm
84 sqm
94 sqm
104 sqm
9. Multiple Choice
45 seconds
1 pt
A cubical box has each edge 10 cm and another cuboidal box is 12.5 cm long,10 cm wide and 8 cm high.Which box has greater lateral surface area
cuboidal box
cubical box
10. Multiple Choice
30 seconds
1 pt
A conical tent is 10 m high and the radius of its base is 24 m. its slant height is
23 m
25 m
26 m
27 m
11. Multiple Choice
30 seconds
1 pt
surface area of a sphere of diameter 14 cm is
516 sqcm
716 sqcm
416 sqcm
616 sqcm
12. Multiple Choice
30 seconds
1 pt
volume of a right circular cone with radius 3 cm and height 3.5 cm.
11 sqcm
22 sqcm
33 sqcm
44 sqcm
13. Multiple Choice
1 minute
1 pt
Total surface area of a hemisphere of radius 10 cm is. (use π = 3.14)
842 sqcm
942 sqcm
742 sqcm
642 sqcm
14. Multiple Choice
2 minutes
1 pt
volume of a sphere whose surface area is 154 $cm^2$ .
$169\ \frac{2}{3}\ cm^3$
$159\ \frac{2}{3}\ cm^3$
$179\ \frac{2}{3}\ cm^3$
$189\ \frac{2}{3}\ cm^3$
15. Multiple Choice
3 minutes
1 pt
Sides of a triangular plot are in the ratio 3:5:7 and its perimeter is 300 m. Find its area.
$600\sqrt{3}cm^2$
$2500\sqrt{3}cm^2$
$900\sqrt{3}cm^2$
$1500\sqrt{3}cm^2$
16. Multiple Choice
2 minutes
1 pt
Area of triangular park whose sides are 40 m, 32 m, and 24 m is
$374\ m^2$
$384\ m^2$
$394\ m^2$
$364\ m^2$
17. Multiple Choice
45 seconds
1 pt
If 125^x = 25 ,find x
$\frac{1}{3}$
$\frac{3}{2}$
$\frac{2}{3}$
$\frac{2}{5}$
18. Multiple Choice
2 minutes
1 pt
If z = 0.064 ,find the value of $\left(\frac{1}{z}\right)^{\frac{1}{3}}$
$\frac{2}{5}$
$\frac{5}{3}$
$\frac{3}{5}$
$\frac{5}{2}$
19. Multiple Choice
1 minute
1 pt
Express $0.5\overline{7}$ in the form $\frac{p}{q}$ ,where $p\ and\ q$ are integers and $q\ne0$
$\frac{26}{54}$
$\frac{32}{54}$
$\frac{24}{45}$
$\frac{26}{45}$
20. Multiple Choice
10 seconds
1 pt
identify the irrational number
$\sqrt{225}$
$0.3789$
$\sqrt{23}$
$0.\overline{75}$
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